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For the Grineer counterpart, see Kuva Lich.

My brother was a witless man. Happy as a hog, face-down in the trough. No thought of the farmer's axe. He was a brute above my asperous constitution. Yet he had not the will or the guile to let me guide that brawn. So... in my youth, I often imagined I had another sibling. A specter of sorts... A sister. And in my mind, she and I - oh how we would conspire... great schemes, risk-trades, rapacious plots. And should I ever find myself... back at the trough. Penniless. Betrayed. Rich, only in enemies... She'd be at my side, axe in hand.

The Sisters of Parvos are Corpus super soldiers that work under Parvos Granum. Sought out as Candidates by Vala Glarios, the Sisters seek to fulfill Parvos's desire in having a reliable sibling, and are armed with advanced Tenet weaponry and Hound companions.

Acting as a nemesis to the individual Tenno whose actions in battle have caused them to rise, Sisters establish a foothold in the Star Chart. From there, they hinder the progress of the Tenno, seizing a large portion of credits gained from missions. Their powers, bestowed upon them by Parvos' technology, grant them invincibility in battle that can only be broken by the Tenno who they are bound to - by discovering a sequence of enigmatic phrases inscribed on Requiem Mods, which the Tenno must unearth and apply to their Parazon in corresponding order, thus being able to purify and permanently break the Sister's security encryption. Every Sister has a unique name and various properties.

Creation

Profile page of a newly created Sister.

Mission nodes that a Sister has taken.

After the completion of The War Within and Call of the Tempestarii quests, the player may encounter a Candidate after completing the Granum Void in any Corpus Ship tileset while qualifying for Rank 1 rewards of Nightmare Difficulty (using a Zenith Granum Crown). This can be done before or after completing the mission's main objective.

By choosing to kill the Sister Candidate with a Parazon Mercy kill, the player causes a Sister to rise in the Origin System, thus becoming the Progenitor of that Sister, and the Warframe used for this is recognized as the Progenitor Warframe. In a squad, only the last player who damaged the Candidate may perform the Mercy kill. If no one takes the mercy action, the Candidate will despawn after 30 seconds. This does not interrupt the normal course of the mission. Upon return to the Orbiter, regardless of whether the mission was completed or aborted, the player will receive communications from the newly created Sister. The Sister's profile can be accessed from either the Orbiter's Navigation console, or on the Main Menu, through a banner on the lower right corner of the screen.

Players cannot Mercy the Candidate if they already have an active Sister or Kuva Lich. A Candidate can still spawn if any member of the squad already has an active Sister/Lich.

When the player is within Mercy distance, the downed Candidate will display an icon and name of the Tenet Weapon the created Sister will wield. The displayed weapon is always random, meaning players can run a mission multiple times before Mercy killing her with their weapon of choice.

Progenitor Warframe

The Warframe who created the Sister will determine the elemental damage bonus that her Tenet Weapon will have, as well as the type of Ephemera should they spawn with one. In addition, it will determine the Sister's Ability kit, and the Sister will typically have complete immunity to damage of her progenitor element.

Element Progenitor Warframe*
DmgImpactSmall64.png Impact BaruukIcon272.png BaruukGaussIcon272.png GaussGrendelIcon272.png GrendelRhinoIcon272.png RhinoSevagothIcon272.png SevagothWukongIcon272.png WukongZephyrIcon272.png Zephyr
DmgHeatSmall64.png Heat ChromaIcon272.png ChromaEmberIcon272.png EmberInarosIcon272.png InarosNezhaIcon272.png NezhaProteaIcon272.png ProteaVaubanIcon272.png VaubanWispIcon272.png Wisp
DmgColdSmall64.png Cold FrostIcon272.png FrostGaraIcon272.png GaraHildrynIcon272.png HildrynRevenantIcon272.png RevenantTitaniaIcon272.png TitaniaTrinityIcon272.png Trinity
DmgElectricitySmall64.png Electricity BansheeIcon272.png BansheeExcaliburIcon272.png ExcaliburLimboIcon272.png LimboNovaIcon272.png NovaValkyrIcon272.png ValkyrVoltIcon272.png Volt
DmgToxinSmall64.png Toxin AtlasIcon272.png AtlasIvaraIcon272.png IvaraKhoraIcon272.png KhoraNekrosIcon272.png NekrosNidusIcon272.png NidusOberonIcon272.png OberonSarynIcon272.png Saryn
DmgMagneticSmall64.png Magnetic HarrowIcon272.png HarrowHydroidIcon272.png HydroidLavosIcon272.png LavosMagIcon272.png MagMesaIcon272.png MesaXakuIcon272.png XakuYareliIcon272.png Yareli
DmgRadiationSmall64.png Radiation AshIcon272.png AshEquinoxIcon272.png EquinoxGarudaIcon272.png GarudaLokiIcon272.png LokiMirageIcon272.png MirageNyxIcon272.png NyxOctaviaIcon272.png Octavia

*Note that the Primed or Umbra version of a Warframe share the same element

Personality

Sisters can have one of four personalities.[1] Since Sisters are always female, the personality chosen will be random and not split between sexes like Kuva Liches. These personalities can be described as "Business", "Nervous", "Domineering", and "Folksy."

Tutorial

The Sisters of Parvos tutorial summary can be accessed from the "Tutorial" button in the Sisters of Parvos profile.

AN IMMORTAL FOE
You can only defeat this Adversary by equipping your Parazon with a sequence of Requiem Mods that are unique to [ADVERSARY NAME].
REQUIEMS
Requiem Mods can be acquired from Requiem Relics, found in Kuva Siphons and Kuva Floods.
MURMURS
Collect Murmurs by defeating [ADVERSARY NAME]'s Thralls (Grineer) or Hounds (Corpus) to learn the Known Requiems.
THE SECRET
Equip the Known Requiems on your Parazon and battle [ADVERSARY NAME] to determine the correct sequence.
TAXES
In regions containing your

Adversary's territory, [ADVERSARY NAME] may steal your rewards. Defeating [ADVERSARY NAME] is the only way to recover your losses.

VENGEANCE
Lure [ADVERSARY NAME] out of hiding by defeating Thralls (Grineer) or Hounds (Corpus) in controlled areas.
RAILJACK
Pursue [ADVERSARY NAME] in Railjack once they Flee to the Proxima Regions.

Behavior & Mechanics

Star Chart Influence and Reward Tax

A Sister increasingly establishes influence across a set of nodes in the system by commanding Mechanized Hounds, which will appear during missions. The Sister will gain influence each time she ranks up, and a node will lose its influence after the player defeats the Sister Controlled Territory mission there. Clearing influence from nodes on the Star Chart will cause the Sister to take control of new planets.

Influence serves to diminish the player's rewards for completing missions in the affected nodes as a part of the reward will be claimed by the Sister through a Reward Tax in form of Credits. As the number of nodes under influence increases, the Reward Tax will also increase (roughly 0.7% per node). Credits that the player has lost through Reward Tax will only be reclaimed after they have defeated the Sister.

Rage Meter

A rage meter can be seen in the Sister Profile page, representing the likelihood that the Sister will appear in the player's missions. The 'angrier' the Sister, the more likely the player will encounter her. Only killing mechanized hounds in nodes occupied by the player's Sister will further anger the Sister and increase the meter. Occupied node mission completion and killing mechanized hounds in different Sister nodes (via taxi) will not increase the Sister's anger, although the latter will still progress the murmur.
There are five levels of anger: Indifferent → Annoyed → Fuming → Furious → Enraged. The meter will reset every time the Sister levels up. Note that a failed assassination attempt on a level 5 Sister will not result in her rage meter decreasing due to them not leveling up past level 5, therefore maintaining your chance of encountering her in future nodes.

Level

Sister Level Enemy Level on
Controlled Nodes
Region
1 55-75 Venus
2 50-60 Phobos
3 55-70 Jupiter
4 75-90 Neptune
5 90-110 Pluto

Newly created Sisters start at Level 1, indicated above her name in her profile page. As the player progressively fills the Sister's rage meter they will eventually encounter the Sister in combat during a mission. If the player fails a Mercy attack at any point during the fight, the Sister will be staggered, swearing vengeance towards the player. After doing so, the Sister will despawn, though not before increasing in level by one. As a Sister increases in level, so too does the level of missions under her influence. A Sister can reach a maximum level of 5. Sisters may gain additional resistances and immunities upon leveling up.

Final Showdown

Once you’ve performed the correct sequence of Requiem Mods on your Sister, she will flee to a final, guaranteed showdown in her Capital Ship within Railjack in the Neptune Proxima (minimum Pilot Intrinsic 5)! Take her on when you’re ready. Other Tenno looking to fight their own Sister of Parvos will matchmake to the same node, where you can work side-by-side to take down your unique foes one-by-one!

Abilities/Attacks

Sisters have four unique Abilities, three of them are variants of existing Warframe Abilities and one is a movement Ability. The first three Abilities that they possess depend on the Element associated with the Progenitor Warframe that summoned the Sister. Regardless of the Progenitor Warframe, the fourth Ability can be one of the following four abilities: Lurch, Stampede, Teleport, or Vault.

Sisters, being Corpus-based, also have a shield-based defense with a VERY strong natural regeneration rate after a short delay. If you don't keep damaging them they can end up regenerating a sizeable portion of their health quite quickly.

Sisters start out with their first Ability and fourth movement Ability; they will gain access to their second and third Abilities at levels 2 and 3 respectively similar to how Warframes gain access to their Abilities when ranking up.

Element Ability 1 Ability 2 Ability 3 Ability 4
DmgImpactSmall64.png Impact Overload
(Smite130xDark.png Smite)
Cursed Ground
(HallowedGround130xDark.png Hallowed Ground)
Blaze Artillery
(BlazeArtillery130xDark.png Blaze Artillery)
Lurch,
Stampede,
Teleport,
or Vault
DmgHeatSmall64.png Heat Fireball
(Fireball130xDark.png Fireball)
Spectral Scream
(SpectralScream130xDark.png Spectral Scream)
Warding Halo
(WardingHalo130xDark.png Warding Halo)
DmgColdSmall64.png Cold Balefire
(Balefire130xDark.png Balefire)
Undertow
(Undertow130xDark.png Undertow)
Snow Globe
(SnowGlobe130xDark.png Snow Globe)
DmgElectricitySmall64.png Electricity Null Star
(NullStar130xDark.png Null Star)
Radial Blind
(RadialBlind130xDark.png Radial Blind)
Electric Shield
(ElectricShield130xDark.png Electric Shield)
DmgToxinSmall64.png Toxin Molt
(Molt130xDark.png Molt)
Renewal
(Renewal130xDark.png Renewal)
Prowl
(Prowl130xDark.png Prowl)
DmgMagneticSmall64.png Magnetic Rhino Stomp
(RhinoStomp130xDark.png Rhino Stomp)
Tectonics
(Tectonics130xDark.png Tectonics)
Soul Punch
(SoulPunch130xDark.png Soul Punch)
DmgRadiationSmall64.png Radiation Magnetic Snare
(Magnetize130xDark.png Magnetize)
Polarize
(Polarize130xDark.png Polarize)
Ensnare
(Ensnare130xDark.png Ensnare)

Mechanized Hound

SistersOfParvosTeaser1.jpg

A Sister does not maintain her territory on her own. Aside from enlisting the aid of Corpus troops and proxies, she also has Hounds that assist her conquest. In addition to having Robotic, Alloy Armor, and Proto Shield health types, they receive 25% less damage and have unique attacks depending on their modular parts.

All hounds have a 5% chance of dropping a Requiem Relic.[2][3] Each Requiem Relic has an equal chance to be dropped.

Spawning Mechanics

Unlike Kuva Thralls that convert normal enemies into upgraded units, Hounds are a new type of enemy that spawn in Sister controlled mission node. A Hound appearing in a mission will be accompanied by a musical sting and a waypoint marker. The Hounds are aggressive and will often seek out the player regardless of alert status. One Hound will always appear at the start of a mission, with additional Hounds appearing as the player kills enemies. If a Sister appears to challenge the player, they will also be accompanied by a Hound, regardless of the mission's existing or defeated Hounds.

Quirk

Sisters may rarely spawn with a quirk that provides unique voice-lines and behavior when encountered.

View Quirk List
Quirk Description
Allergic to Nature Talks about being allergic to nature.
Always Hungry Talks about getting a snack.
Bloodhound Makes comments when the player turns invisible.
Coward Attempts to run away from the player when at low health.
Deserter Can leave the mission unexpectedly.
Fear of Being Alone Makes comments if there are no other Corpus nearby.
Fear of Children Is afraid of the player's Operator.
Fear of Kubrows Is afraid of Kubrows, Feral Kubrows, and Drahks.
Fear of Space Travel Upon spawning on a ship, sometimes stands frightened and does not attack first.
Hatred of Children Makes aggressive comments if the player's Operator appears.
Hatred of Grineer Talks about hating Grineer when spawned on Grineer tilesets.
Hatred of Infested Talks about hating Infested when spawned on Infested tilesets.
Loner Talks about preferring to fight alone.
Paranoid Attacks allied Corpus troops
Poor Sense of Balance Retreats after kneeling down and without stabbing.
Prone to Vertigo Stays on the ground level of the map. Avoids going up stairs and catwalks.
Pyromaniac Talks when the player is on fire.
Trophy Hunter Reward tax is higher than usual, allowing the Sister to steal more rewards.
Vain Talks about how beautiful they are after appearing in a mission.

Flavor Text

A Sister will spawn with a randomly-generated title that appears beneath their name in their profile. These follow a naming scheme of the following format:

[Adjective/Rank]* [Position] of/for/in charge of [Purpose/Field] ([Division])^

*Can have anywhere from one to four sequentially
^Division is optional; a Sister may or may not have this

Examples of such titles are:

  • Creative Manager of Best Practices
  • Senior Representative Inspector of Creative Models
  • Junior Creative Inspector of Onboarding
  • Student Trainee Executive Member for Interdepartmental Mobility
  • Principal Head Fiduciary Designer of Dynamics
  • Psychological Operations Trainee Creative Passionpreneur in charge of Core Competencies (Marketing)
  • Legacy Fiduciary Coordinator of Envisioned Intiatives
  • Student Advising Clerk in charge of Certified Thinking (Business Affairs)
  • Junior Technical Overseer of Customer Service (Defence)
  • Enmeshed Lead Member for Parvosian Acquisition
Possible Words
Adjective/Rank Position Purpose/Field Division
  • Academic
  • Adaptive
  • Assistant
  • Associate
  • Certified
  • Coordinating
  • Corporate
  • Creative
  • Deputy
  • Developing
  • Directed
  • Dynamic
  • Economic
  • Enmeshed
  • Executive
  • Experimental
  • Fiduciary
  • Field-Tested
  • Fiscal
  • Forward
  • Head
  • Honorary
  • Industrial
  • Junior
  • Lead
  • Legacy
  • Licensed
  • Medical
  • Principal
  • Psychological
  • Representative
  • Senior
  • Specialist
  • Strategic
  • Student
  • Supervising
  • Supervisory
  • Technical
  • Trainee
  • Trust
  • Visionholder
  • Adjunct
  • Administrator
  • Advising Clerk
  • Appointed Clerk
  • Auditor
  • Consultant
  • Coordinator
  • Designer
  • Developer
  • Director
  • Member
  • Functionary
  • Inspector
  • Investor
  • Leader
  • Manager
  • Member
  • Overseer
  • Passionpreneur
  • Planner
  • Proactivator
  • Producer
  • Secretary
  • Synergist
  • Technician
  • Visionary
  • Administration Negotiation
  • Affairs
  • Benchmarking Initiatives
  • Best Practices
  • Certified Thinking
  • Commercial Rebranding
  • Concepts
  • Core Competencies
  • Creative Models
  • Cultivation
  • Customer Service
  • Decentralized Development
  • Dynamics
  • Efficiency
  • Envisioned Growth
  • Expedited Benefits
  • Fabrication
  • Focused Leverage
  • Focused Supply Chains
  • Formulation
  • Incentivized Headhunting
  • Information
  • Infrastructure Intermediaries
  • Interdepartmental Mobility
  • Interfaces
  • Maintained Methodologies
  • Market Ideas
  • Market Resources
  • Metrics
  • Monetization
  • Monotonal Alignmnet
  • Negotiated Morale
  • Onboarding
  • Parvosian Acquisition
  • Physical Diversification
  • Prophecy Compliance
  • Scalable Weapon Systems
  • Storage
  • Rapid Value
  • Reactive Defense Systems
  • Resolution
  • Value
  • Void Differentiation
  • Acting
  • Analytics
  • Business Affairs
  • Ceres Sector
  • Corporate Affairs
  • Council Affairs
  • Data Insights
  • Defence / Defense
  • Europa Sector
  • In Training
  • Marketing
  • Mars Sector
  • Medical Applications
  • Neptune Sector
  • Planetary
  • Temporary
  • Trust Division
  • Venus Sector

Requiem Mods

Requiem Mods

Main article: Requiem Mods

Requiem Mods are a special subset of Parazon Mods, each one an enigmatic phrase fragment of a complete Requiem Sequence, thus the only way to permanently sever a Kuva Lich or Corpus Sister's Continuity.

They do not possess any polarity, have a drain of 0, and hold up to 3 charges per Mod for a Mod of rank 0, the number of charges is indicated by the number of bright red dots above the word "PARAZON" on the Mod's icon. Each time a Mod is successfully used in a Requiem sequence to lethally defeat a Kuva Lich or Corpus Sister (in other words, a successful vanquish or convert), the Mods will increase in rank by 1 and be drained of one of their charges (thus losing one of the red dots on their icon), becoming powerless at rank 3 - i.e. once all 3 charges are used up, the mod is Defiled, and in this state it can only be broken down into Endo, sold for Credits, or transmuted. 4 Requiem Mods (including rank 3 Defiled ones) can be transmuted into a single new, random, rank 0 (fully charged) Requiem Mod.

These mods are tradable between players at any rank (even at rank 3 Defiled) with a trade tax of Credits64.png 2,500. The rank of the Mod can be determined by both the number of the lit red dots on mod's icon (with rank 0 having all 3 dots and rank 3 having none), and also will be shown in text on the trading confirmation dialog - just as it would be for any non-Requiem Mod.


Notes

  • All Sisters of Parvos interactions will be registered in the Codex, under "Sisters of Parvos" in the Universe tab.
    • The ability to rewatch the Sisters of Parvos intro cutscene is present in the Sisters of Parvos History, through the "View Cinematic" button.
  • Successfully completing all available Sisters of Parvos mission nodes without failing during the requiem mini-game (or by just ignoring it) will automatically increase the Sister's level and spread their influence to another planet.
  • Shield Ospreys will instantly recharge all of a Sisters shields upon linking with her, ruining any damage you had chipped away up until that point. DmgRadiationSmall64.png Radiation status effects MAY prevent this but shield ospreys are somewhat more of a threat than the Sister herself for this reason.

Trivia

  • The Sisters of Parvos were originally known as "Queenpins" prior to Devstream 154 where they were officially dubbed.
  • Unlike Kuva Liches, who have the Progenitor's helmet on their shoulder, the Sisters have their hounds project the helmets on top of their heads.
  • During the overview video of what was to come in the first half of 2021 in Devstream 150, a TenetEnvoy.png Tenet Envoy wielding Sister was present named "Ladia Cru" who was on board a Corpus Ship in Railjack, serving as the final act of killing a Sister of Parvos.
    • It also noted that originally, the Sisters of Parvos showdown was supposed to be in Pluto Proxima before they decided to move it to Neptune Proxima.
  • Sisters of Parvos are voiced by Claire Vousden (Business), Keaton Talmadge (Folksy), Xyta Midnyte (Domineering), and Kyla Ward (Nervous).[4]
  • Unlike Kuva Liches, their abilities in combat do not necessarily reflect the element they are associated with. For example a Sister with DmgRadiationSmall64.png Radiation will instead mostly deal attacks that primarily are associated with MagIcon272.png Mag, who is DmgMagneticSmall64.png Magnetic themed.

Bugs

  • There is a discrepancy between the stats you see in your Tenet weapon's equip menu (and codex entry) stats and its upgrade menu stats. What this may be is the upgrade menu reflects the actual stats of your Tenet weapon and the equip menu reflects generic Tenet weapon stats for that specific Tenet weapon, before the Sister's modifier is applied.
  • Occasionally, Mercy Finishers may not correctly play against Hounds, resulting in a simple placeholder animation where the Warframe stabs their Parazon in the direction they're facing, regardless of the target's actual location; the target simply falls over after the animation completes. This can also be seen by performing a Mercy Finisher as an operator, as the Operator lacks animations for it.
  • If player(s) can deal damage fast enough when the Sister stands up after being incapacitated for the third time, the Sister will be incapacitated again without having time to retreat/despawn.
  • Nova's NullStar130xDark.png Null Stars and Baruuk's DesolateHands130xDark.png Desolate Hands will attack downed Sister Candidates and Hounds, despite not being able to damage them further. (Hounds however still "die" when killed so Nova's Mod TT 20px.png Molecular Fission augment still works to replenish some on doing a mercy kill)
  • If you have a Index return stolen under a credit booster and kill the Sister even if you have a credit booster active you will only receive the original return and not the boosted return (250k return with booster gives 500k return in Index, but the Sister will only give you 250k even with the booster)
  • A bug might happen where an Ephemera might not match up with the element of the weapon.
  • Sisters with the "Fear of Children" Quirk will run away constantly, regardless of if Transference is used by the player or their squad.
  • Converted sisters with the Renewal ability heal for 0 health a second (no health regen at all but still has the buff icon).

Media


References

Edit Tab

Strategy

Drawing out the Sister

To fight a Sister, the player must draw them out. To do this, nodes that the Sister has influence over must be completed and her Hounds must be destroyed. A Sister will also have specific resistances and immunities that are unique to her. The player will know a Sister is active when an icon appears in the Navigation and Menu screens. This icon will appear beside the Nightwave button and will allow the player to check details about their Sister, including her Level, Requiem Mod attempts, and more.

A Sister's territory will be shown as a blue clouds on the Navigation screen. It will start on Venus, clicking it in to view it will show which nodes the cloud is spreading over. These nodes will give the option to run the standard node mission, the Sister version, or any other active special version, such as Nightmares or Invasions.

Endless missions in Sister controlled territories only feature one "round", with Defense lasting five waves, Survival lasting five minutes before extraction is called, Interception lasting one wave, and Excavation requires 500 Cryotic before extraction is called. Defection missions are unavailable and are replaced by Exterminate.

Only one Sister or Kuva Lich can be active at any time, so the current Sister must be defeated before a new one can be made by the player.

Requiem Murmurs

Requiem Mod attempts in Kuva Lich profile. Bottom row displays known Requiem mods and Requiem Murmur progress. Top row displays currently equipped Requiem Mods. Middle rows are previous Requiem Mod attempts; Requiems highlighted red with a slash signify incorrect mod or position, and Requiems greyed out are untested on the Lich.

To determine which Requiem Mods are needed to defeat the Sister, the player will need to gain Requiem Murmurs. A multitude of Requiem Murmurs will update the Sister's status screen, revealing part of the Requiem Mod combination that will prove fatal to the Sister.

Note that Murmurs will only reveal the Requiem Mods required to kill the Sister, not the order they are needed to be in. The player will need to figure out the order by trial-and-error.

Murmur progress; inner ring for Hint 1, middle ring for Hint 2, and outer ring for Hint 3

Any mission under a Sister's influence will periodically spawn Hounds as the squad advances through the mission. Killing a Hound via a Mercy Finisher will reward all players in the mission one Requiem Murmur. Attempting a Mercy on a Sister also rewards Requiem Murmurs. If a Mod is guessed incorrectly the entire squad gains 10 Murmurs. If a mod is guessed correctly the accumulated Murmurs will transfer over to the next Mod reveal.

If a player joins a mission mid-progress, all killed Hounds and repelled Sisters are instantly added to the Murmur progress.

Combat

If a Sister is sufficiently enraged, there is a chance that they will appear in the mission to combat the players. It is entirely possible that a Sister will appear long before the player has deduced all three Requiem Mods; because of this, killing or even fighting the Sister is not required for mission success (for example, waves in Defense missions will end even if the Sister is still active).

A Sister has a shield bar and three health bars. Depleting a Sister's health bar to 5% will cause them to stumble and begin to gradually recover health for 10 seconds, giving the player a chance to use their Parazon for a Mercy attack. If the Requiem Mods are in the correct sequence, the Sister's health bar will be destroyed, otherwise, the Sister will simply despawn and also gain a rank up. Unlike Kuva Liches, Sisters do not drop Kuva.

Sisters will spawn in with their Hound. If this Hound is still alive before her first health bar is depleted, it will self-destruct, dealing radial damage and yields no Murmur progress.

In addition to having Flesh, Ferrite Armor, and Shield health types, Sisters have variable resistances and weaknesses to damage types. A Sister can have a weakness (+25% damage), resistance (-50% damage) or immunity (-100% damage) to a particular damage type. As a Sister levels up, the type against which it is vulnerable to may become one of those it resists. Unlike most bosses, Sisters and their Hounds are vulnerable to status effects with some restrictions; they can only receive up to 4 stacks of any status effect with the exception of DmgImpactSmall64.png Impact which can stack up to 6 times, and DmgRadiationSmall64.png Radiation only amplifies the damage the Sister and Hound receives from allied units and does not enable friendly fire unless those allies themselves are inflicted by the status.

If a Sister stumbles three times without attempting to use the Parazon on the Sister, or all Tenno are in bleedout or are dead, it will automatically flee and leave the mission. This prevents it from leveling up, but will not generate Murmur knowledge.

Only one Sister can be present at any given time. The present Sister must be repelled or defeated in order for another player's Sister to spawn.

Final Confrontation

When the right combination of Requiem Mods is found and all three of the Sister's health bars have been destroyed, all the Requiem mods used will lose one charge and the Sister will have a 25% chance to drop the Requiem Mod Oull for only their player before retreating to the Neptune Proxima, appearing in a node dubbed "Sister Confrontation". This is an Empyrean Skirmish mission where players must embark in their Railjack and eliminate a number of Crewships and Corpus Ship Security Nodes before boarding the ship for the final confrontation with the Sister. If there are multiple squad members, each player's Sister will spawn in one-by-one until all of them are defeated.

The Sister in the final confrontation is protected by two random Warframe Specters and her Hound and is invulnerable until her guardians are defeated, and only has one large health bar. Once depleted, the Sister will be finally defeated for good and prompt one final Mercy. The player will be given two choices: to Vanquish the Sister or Convert her.

  • Whichever choice made, all rewards stolen from the Sister will be returned to the player. If the Sister has an Ephemera equipped, the player is also guaranteed to get it. There is also a 25% chance the Sister will reward a Requiem Ultimatum for only their player. All players will also receive one Corrupted Holokey.
  • Vanquish: The Sister will permanently die and award the player her Tenet Weapon and Hound, which is also named after the defeated Sister (e.g. "Gonia Bek Tenet Detron"); these will be "Ready to Claim" in the Foundry and bypasses their Mastery Rank requirement. She will also drop a random Hound component blueprint for all players.
  • Convert: The Sister becomes the player's ally, allowing her to appear randomly in a mission after the player enters bleedout, and can be brought aboard Railjacks as defensive Crew.
    • The player can trade a converted Sister, allowing another player a chance to earn their weapon and/or Ephemera. The trade is performed inside a Clan Dojo's Crimson Branch room, and the recipient must not have any active Kuva Lich or Sister.
      • The stats of the Sister being traded can be previewed by right-clicking its token.
      • Once traded, the Sister will become the recipient's active Sister, and the Requiem Mod combination used to defeat her will change.
      • A converted Sister can only be traded once. If the recipient converts their received Sister, she will not be tradeable.

The player has 20 seconds to choose. If no choice is made, the Sister is automatically vanquished.

Summary

  1. Play missions controlled by your Sister and kill her Hounds to get closer to finding out their Requiem Mods sequence.
  2. Farm Requiem Mods by opening up Requiem Relics during Kuva Fortress Void Fissures. Requiem Relics can be dropped by Kuva Thralls, Mechanical Hounds, and Kuva Siphons.
  3. Equip these Requiem Mods on your Parazon in any desired order to test out the sequence against your Sister.
  4. Keep playing on Sister-controlled nodes and farming Thralls until you encounter your Sister.
  5. Lower her health to 0 and attempt to finish them with your Parazon. If the Requiem order is incorrect, the Parazon attempt(s) will stop at the first incorrect Mod. The Sister will then level up, controlling another planet and nodes in the Star Chart.
  6. Reorder or change the Requiem Mods installed on your Parazon depending on newly gained info.
  7. If the Requiem sequence is correct, all Requiem Mods used in the sequence will lose one charge. The Sister will retreat to the Neptune Proxima in a Skirmish mission for one final confrontation. Once defeated there, all stolen drops are returned, and her Ephemera (if she has one) is rewarded. Choose to Vanquish and acquire the Sister's Weapon and Hound, or Convert to turn it into an ally that randomly appears in missions or to trade it to another player.

Tips

  • While Sisters at lower levels are fairly straightforward to deal with, high level (i.e. level 5) Sisters in both a standard planet encounter and the final confrontation have such a high toughness/damage reduction that taking one on solo can come with a subtle unique challenge: ammo. In the long protracted fight with the Sister you often won't have other lesser enemies also spawning to give you ammo drops, and you will run out of containers. Sisters can be much worse at this than Kuva Lich's due to a combination of their tough regenerating shields and a frequent habit of teleporting away from you behind cover. Because of this it is well worth considering taking at least one Primary or Secondary with you of a recharging-ammo type, such as:

Trivia

  • The chance of downing a Sister on the first try assuming the player has at least three Requiem Mods installed is a 1/336 (0.2976%) chance. This can be improved to a 1/56 (1.7857%) chance with an Oull Mod.

References

Edit Tab

Progenitor

Element Progenitor Warframe*
DmgImpactSmall64.png Impact BaruukIcon272.png BaruukGaussIcon272.png GaussGrendelIcon272.png GrendelRhinoIcon272.png RhinoSevagothIcon272.png SevagothWukongIcon272.png WukongZephyrIcon272.png Zephyr
DmgHeatSmall64.png Heat ChromaIcon272.png ChromaEmberIcon272.png EmberInarosIcon272.png InarosNezhaIcon272.png NezhaProteaIcon272.png ProteaVaubanIcon272.png VaubanWispIcon272.png Wisp
DmgColdSmall64.png Cold FrostIcon272.png FrostGaraIcon272.png GaraHildrynIcon272.png HildrynRevenantIcon272.png RevenantTitaniaIcon272.png TitaniaTrinityIcon272.png Trinity
DmgElectricitySmall64.png Electricity BansheeIcon272.png BansheeExcaliburIcon272.png ExcaliburLimboIcon272.png LimboNovaIcon272.png NovaValkyrIcon272.png ValkyrVoltIcon272.png Volt
DmgToxinSmall64.png Toxin AtlasIcon272.png AtlasIvaraIcon272.png IvaraKhoraIcon272.png KhoraNekrosIcon272.png NekrosNidusIcon272.png NidusOberonIcon272.png OberonSarynIcon272.png Saryn
DmgMagneticSmall64.png Magnetic HarrowIcon272.png HarrowHydroidIcon272.png HydroidLavosIcon272.png LavosMagIcon272.png MagMesaIcon272.png MesaXakuIcon272.png XakuYareliIcon272.png Yareli
DmgRadiationSmall64.png Radiation AshIcon272.png AshEquinoxIcon272.png EquinoxGarudaIcon272.png GarudaLokiIcon272.png LokiMirageIcon272.png MirageNyxIcon272.png NyxOctaviaIcon272.png Octavia

*Note that the Primed or Umbra version of a Warframe share the same element

Tenet Weapons

Main article: Tenet

Tenet weapons are a special variant of existing Corpus weapons carried by a player's Sister and can be acquired once the Sister is Vanquished. If the player has enough weapon slots, they can claim these weapons from their Foundry, bypassing the supposed Mastery Rank requirement on these weapons. The weapons vary in attributes, dependent on the Sister the player has slain. The Energy Color on the weapon is depicted by what elemental bonus was augmented on the weapon during Sister creation and the progenitor Warframe. All weapons have an equal chance of spawning from a Sister.

Certain Tenet weapons are unique to Sisters, and are not based on existing Corpus weapons.

There are also unique melee Tenet weapons. These are not obtained from Sisters, instead they are bought from Ergo Glast in any Relay for 40 Corrupted Holokeys, and their availability is not affected by the player's reputation with The Perrin Sequence syndicate. The bonus element and bonus percentage of Ergo Glast's Tenet weapons cycle every 4 days.



Mechanics

A Tenet variant of a weapon will only provide mastery points once. A second weapon of the same variant but with a different Sister name will not provide extra mastery. These weapons have a max rank of 40. To obtain the maximum rank, the player must polarize the weapon five times, with each Forma increasing the maximum possible rank by 2 (similar to BallasSword.png Paracesis).

The Tenet weapons additionally have bonus damage of one damage type, ranging from 25-60% of the weapon's base damage determined randomly, with lower percentages being more common.[1] The damage type of this bonus damage is determined by the Progenitor Warframe, as per this table.

Note: This additional bonus damage applies as weapon base damage, meaning elemental mods and status that scale from base / modified base damage will be affected.

Valence Fusion

Valence Fusion combines two of the same Kuva or Tenet weapons into one with a higher Elemental Bonus. Valence Fusion can be found under the Actions button while modding a weapon. After selecting Valence Fusion, a player is required to choose another of the same Kuva Weapon from the inventory (not in Foundry or with the Kuva Lich) to fuse it with. If the weapon's element bonuses differs, the player will be prompted to choose between the two available elements. The elemental bonus caps at 60%. Any other properties (Orokin Catalyst, Forma, Stance Forma, Exilus Weapon Adapter, or Focus Lens) do not transfer over, meaning the order of fusion is important. Put simply, it is best to equip the weapon with the most resource investment (weapon rank, Catalyst, Forma, and Exilus) and fuse other weapons to it.

Example: KuvaKohm.png Kuva Kohm (A) has 40% DmgHeatSmall64.png Heat Damage and an Orokin Catalyst. Kuva Kohm (B) has 52% DmgRadiationSmall64.png Radiation damage. The player has two options, to fuse (A) with (B) or to fuse (B) with (A).

Since 52% is higher than 40%, the result will always be according to the percentage of (B) and multiplied by 1.1. So 52 x 1.1 = 57.2 , (57%)

Fusing (B) to (A): Equip (A), under Valence Fusion, select (B). The result of this will be a Kuva Kohm with 57% DmgHeatSmall64.png Heat or DmgRadiationSmall64.png Radiation damage and an Orokin Catalyst. (B) will be destroyed.

Fusing (A) to (B): Equip (B), under Valence Fusion, select (A). The result of this will be a Kuva Kohm with 57% DmgHeatSmall64.png Heat or DmgRadiationSmall64.png Radiation damage without an Orokin Catalyst. (A) will be destroyed.

After selecting the donor weapon to be used in the fusion, a confirmation screen displays the desired weapon's new damage type and bonus values and warns that the transfer will consume the selected donor weapon. Players are then prompted to type FUSE to confirm the fusion. Fusion will not affect the rank of a weapon - it will retain its previous rank.


For Weapons and same-tier Armaments, fusions can be achieved at the following percentages:

Minimum Initial Value Maximum Number of Fusions
54.6% 1
49.6% 2
45.1% 3
41.0% 4
37.3% 5
33.9% 6
30.8% 7
28.0% 8
25.5% 9
25.0% 10


Ephemera

Sisters have a 20%[2] chance to be created with an Ephemera equipped that corresponds to the Progenitor Warframe who created them. Players will receive a Sister's Ephemera regardless of whether they Vanquish or Convert them.

Element Ephemera Visuals
DmgImpactSmall64.png Impact

Kyruna Ephemera

KyrunaEphemera.gif
DmgHeatSmall64.png Heat

Zarina Ephemera

ZarinaEphemera.gif
DmgColdSmall64.png Cold

Gloriana Ephemera

GlorianaEphemera.gif
DmgElectricitySmall64.png Electricity

Sybillina Ephemera

SybillinaEphemera.gif
DmgToxinSmall64.png Toxin

Lucretia Ephemera

LucretiaEphemera.gif
DmgMagneticSmall64.png Magnetic

Solena Ephemera

SolenaEphemera.gif
DmgRadiationSmall64.png Radiation

Hypatia Ephemera

HypatiaEphemera.gif

Hound Companion

After vanquishing Sister, players will also get a fully built version of the Sister's Hound as a companion, and will also drop a random Hound component blueprint for all players in the squad which can be assembled with assistance from Legs in Fortuna. The Hound component blueprints are tradeable between players. Converting a Sister will not yield these rewards.

Ally

Converted Sisters can randomly appear in missions after the player enters bleedout, fighting alongside the Tenno. The converted Sister's level follows the formula Sister Rank x 20 (capped at level 80 in normal mode and level 135 in The Steel Path) regardless of mission level, their weapons have a 3x damage multiplier, and will use all of their abilities. They will stay for a minimum of 2 minutes.

Railjack Crew

With Intrinsics Command Rank 8, Converted Sisters can be brought aboard Railjacks as Crew members.

Unlike NPC crew members hired from Ticker, the Sister cannot be given weapons and will default to using their own, cannot operate Railjack systems such as the pilot seat, turrets, and repair, do not have moddable stats, and are restricted to the Defender role. However, their health and shields are significantly higher than NPC crew members, making them built for endurance and quite suited for repelling boarders.

Sisters as crew members follows a different level scaling formula compared to randomly appearing converted Sisters: Sister Rank x 15. For example, a Rank 5 Sister will be at level 75 when they are equipped as crew members.

Trivia

  • The writing in Zarina Ephemera translates into: “In victory power in prosperity proprietary“.

Notes

  • Unclaimed Tenet weapons in the Foundry can be sold directly for  10,000.
  • Total number of Tenet Weapons is 12 costing 60 forma to max rank all.

References

Edit Tab

Hotfix 30.8.1 (2021-10-06)

  • Fixed Mercy animation not properly playing when performed on Sister Hound.

Update 30.8 (2021-10-04)

  • Fixed inability to Mercy downed Hounds.

Hotfix 30.7.6 (2021-09-23)

  • Fixed game hitches / spot-loading that could occur after executing a Sister’s Hound.
  • Fixed a case of an Adversary dashing off the edge of the level and disappearing with no chance to Parazon (most commonly seen in the Gas City tileset).

Hotfix 30.7.3 (2021-09-10)

  • Fixed inability to Sell Hound/Adversary weapons in the Foundry when using a controller.

Hotfix 30.7.2 (2021-09-09)

Sister Hound / Weapon / Lich Weapon Foundry “Selling” Functionality:

If you’ve engaged in the Adversary hunts with Kuva Liches and Sisters of Parvos, your Foundry might be suffering from some unavoidable clutter. The amount of Hounds and weapons sitting in your Foundry have grown to not only take up room in your list but also within the database itself!

To alleviate this clutter, you can now Sell a Hound and/or Adversary weapon directly from your Foundry without having to claim the item and use a Slot, granting yourself some Credits! Get cleaning up your (H)Foundry. Ordis’ orders!

Hotfix 30.7.1 (2021-09-08)

  • Fixed the Transmission that plays when an Ally Sister spawns not actually showing the correct Adversary for Clients. This also could result in a big spot-load.

Update 30.7 (2021-09-08)

  • Made improvements to the Sister showdown cinematic:
    • Added music befitting a showdown!
    • Fixed the cinematic being silent.
    • Fixed ability to manipulate the camera during the cinematic.
    • Fixed animation popping during the cinematic.
  • Changed Sister Candidate waypoint icon to be the Sister icon instead of the Treasurer (Granum Crown) icon.
  • Fixed a progression stopper in the Sister showdown fight due to the Sister’s Hound not spawning if the Host player died and went AFK after entering the Capital Ship.
  • Fixed not receiving the Sisterhood Sigil after Converting or the Sisterhood Emblem after Vanquishing a Sister of Parvos.
    • Upon login those missing their respective Sisterhood Sigil/Emblem will receive them.
  • Fixed Rhino’s Rhino Stomp perpetually stunning Sisters of Parvos.
  • Fixed the Sister Vanquish animation not playing correctly, where it would turn the Sister invisible or fall through the floor during the animation.
  • Fixed issue where fusing two partially ranked Tenet weapons together appeared to increase the rank of your weapon.
    • This was a UI / display only, as the Valence fusion does not increase a weapon rank. Now, the weapon rank does not increase from fusion and the UI does not incorrectly show that it has.
  • Fixed an issue in Crew Command where Liches would appear as Grineer Heavy Gunners in the Railjack UI. It now shows the Sisters of Parvos badge icons where it previously showed Grineer Heavy Gunners to represent this Crew member.

Hotfix 30.6.1 (2021-08-10)

  • Added the intro cinematics to both the Kuva Lich and Sister Showdown as seen in the original Kuva Lich fight debut!
  • While we continue to review Sister fight feedback, a frequent comment both externally and internally was the amount of teleporting occurring during the fight. While not wanting to turn the fight into a one spot slaughter by removing the teleport outright, we’ve increased the Sister teleport cooldown from 10s to 18s.
  • Fixed Sister Candidate dissolving into nothing if downed after being affected by Nova’s Molecular Prime, thus denying the player of a Sister opportunity.
  • Improved the Hound Reflex Denial Precept to be more similar to Nyx’s Absorb and capped the Damage per burst that can be directed back at you by Enemy Hounds; preventing self-damage or friendly fire.

Hotfix 30.5.5 (2021-07-29)

  • Sister Hound’s Repo Audit ability will no longer affect downed players.
    • This fixes downed Clients losing their weapons for the rest of the mission after an enemy Sister Hound activates its Repo Audit.
  • Fixed a crash occurring when interacting with a dead Specter ‘Follow’ Context Action after a Host migration occured during a Sister Railjack showdown.
  • Fixed the "JOIN ANY CREW" button in the Railjack Star Chart allowing you to join a Kuva Lich or Sister showdown mission, which resulted in an error message if you do not have a proper Kuva Lich or Sister.

Hotfix 30.5.4 (2021-07-17)

  • Fixed a Traded Sister (therefore Converted) not starting at the expecting Star Chart node.
  • Fixed Specters/Hounds not needing to be killed if a Host migration occured at the start of a Sister showdown Railjack mission.
  • Fixed Kuva Lich/Sister Vanquished rewards lingering in the End of Mission screen for missions played after the successful showdown.

Hotfix 30.5.3 (2021-07-09)

  • Another fix towards a softlock during the Kuva Lich/Sister Convert/Vanquish choice related to attempting to switch from Pistol to Parazon
  • Fixed not receiving Vanquished Sister rewards if a Client Vanquishes their Sister before a Host migration and becomes the new Host.
  • Fixed Sister Soul Punch ability not being properly limited to a single clone instance at a time. It can also no longer copy your Pets/Sentinels since these were missing some customizations (like their heads).
  • Fixed enemy Hounds activating its Null Audit Precept when it doesn't have a visible target.

Hotfix 30.5.2 (2021-07-07)

  • The Lich screen now displays helpful text that your Kuva Lich or Sister has fled to the respective Proxima region when appropriate.
    • This change aims to help players progress along the new Lich showdown flow when they reach this point and diminish confusion as to where their Kuva Lich/Sister has gone.
  • Fixed a softlock occuring during the Kuva Lich or Sister Vanquish/Convert choice if you had an Arch-Gun equipped or any custom animation (Mesa’s Peacemaker, etc).
  • Fixed inability to make the Vanquish/Convert choice if replaying the showdown mission.
    • This was achieved by entering the showdown mission, getting to the Vanquish/Convert choice, then backing out to the Dojo and going again.
  • Fixed not actually receiving the OULL Requiem after having your Kuva Lich/Sister flee.
    • Accounts that did not actually receive their OULL Requiem will be fixed upon login.
    • Fixed not actually receiving the Requiem Ultimatum after Converting/Vanquishing your Kuva Lich/Sister.
    • Accounts that did not actually receive their Requiem Ultimatum will be fixed upon login.
  • Fixed getting a Sister Transmission everytime you Mercied a Hound (will now have a 10% to play instead of 100%).
  • Fixed End of Mission screen not showing the proper amount of Boosted Credits when some are Taxed by a Sister.
  • Fixed a minor grammar issue in the Converted Sister Inbox message.

Hotfix 30.5.1 (2021-07-06)

  • Fixed the Sisters of Parvos cinematic opening playing for everyone on login as opposed to the intended viewing of eligible players.
  • Fixed a script error when the Candidate despawns
  • Fixed a script error during a Kuva Lich/Sister showdown mission.

Update 30.5 (2021-07-06)

  • Introduced.

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