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“It's taking longer than I calculated.”
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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 adversaries that work under Parvos Granum.

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 Void-originated powers 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 sever the Sister's Void powers. Every Sister has a unique name and various properties.

Creation

CorpusSisterScreen

Profile page of a newly created Sister.

CorpusSisterNodes

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.

Element Progenitor Warframe*
DmgImpactSmall64 Impact BaruukIcon272 BaruukGaussIcon272 GaussGrendelIcon272 GrendelRhinoIcon272 RhinoSevagothIcon272 SevagothWukongIcon272 WukongZephyrIcon272 Zephyr
DmgFireSmall64 Heat ChromaIcon272 ChromaEmberIcon272 EmberInarosIcon272 InarosKullervoIcon272 KullervoNezhaIcon272 NezhaProteaIcon272 ProteaVaubanIcon272 VaubanWispIcon272 Wisp
DmgColdSmall64 Cold FrostIcon272 FrostGaraIcon272 GaraHildrynIcon272 HildrynRevenantIcon272 RevenantStyanaxIcon272 StyanaxTitaniaIcon272 TitaniaTrinityIcon272 Trinity
DmgElectricitySmall64 Electricity BansheeIcon272 BansheeCalibanIcon CalibanExcaliburIcon272 ExcaliburGyreIcon272 GyreLimboIcon272 LimboNovaIcon272 NovaValkyrIcon272 ValkyrVoltIcon272 Volt
DmgToxinSmall64 Toxin AtlasIcon272 AtlasDagathIcon272 DagathIvaraIcon272 IvaraKhoraIcon272 KhoraNekrosIcon272 NekrosNidusIcon272 NidusOberonIcon272 OberonSarynIcon272 Saryn
DmgMagneticSmall64 Magnetic CitrineIcon272 CitrineHarrowIcon272 HarrowHydroidIcon272 HydroidLavosIcon272 LavosMagIcon272 MagMesaIcon272 MesaXakuIcon272 XakuYareliIcon272 Yareli
DmgRadiationSmall64 Radiation AshIcon272 AshEquinoxIcon272 EquinoxGarudaIcon272 GarudaLokiIcon272 LokiMirageIcon272 MirageNyxIcon272 NyxOctaviaIcon272 OctaviaQorvexIcon272 QorvexVorunaIcon272 Voruna

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

Personality

Sisters can have one of four[1] personalities. 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 "Confident," "Sassy," "Flirtatious," and "Dim-witted."

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 will 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.

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 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 Impact Overload
(Smite130xWhite Smite)
Cursed Ground
(HallowedGround130xWhite Hallowed Ground)
Blaze Artillery
(BlazeArtillery130xWhite Blaze Artillery)
Lurch,
Stampede,
Teleport,
or Vault
DmgFireSmall64 Heat Fireball
(Fireball130xWhite Fireball)
Spectral Scream
(SpectralScream130xWhite Spectral Scream)
Warding Halo
(WardingHalo130xWhite Warding Halo)
DmgColdSmall64 Cold Balefire
(Balefire130xWhite Balefire)
Undertow
(Undertow130xWhite Undertow)
Snow Globe
(SnowGlobe130xWhite Snow Globe)
DmgElectricitySmall64 Electricity Null Star
(NullStar130xWhite Null Star)
Radial Blind
(RadialBlind130xWhite Radial Blind)
Electric Shield
(ElectricShield130xWhite Electric Shield)
DmgToxinSmall64 Toxin Molt
(Molt130xWhite Molt)
Renewal
(Renewal130xWhite Renewal)
Prowl
(Prowl130xWhite Prowl)
DmgMagneticSmall64 Magnetic Rhino Stomp
(RhinoStomp130xWhite Rhino Stomp)
Tectonics
(Tectonics130xWhite Tectonics)
Soul Punch
(SoulPunch130xWhite Soul Punch)
DmgRadiationSmall64 Radiation Magnetic Snare
(Magnetize130xWhite Magnetize)
Polarize
(Polarize130xWhite Polarize)
Ensnare
(Ensnare130xWhite Ensnare)

Mechanized Hound

SistersOfParvosTeaser1

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 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 [Purpose/Field] (Optional: [Division] e.g. "Mars Sector")

* Requires Verification [image]

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
Adjective/Rank Position Purpose/Field Division
  • Creative
  • Senior
  • Junior
  • Student
  • Principal
  • Psychological
  • Legacy
  • Enmeshed
  • Lead
  • Technical
  • Representative
  • Head
  • Fiduciary
  • Dynamic
  • Assistant
  • Supervising
  • Medical
  • Experimental
  • Fiscal
  • Academic
  • Deputy
  • Specialist
  • Manager
  • Inspector
  • Executive Member
  • Advising Clerk
  • Coordinator
  • Overseer
  • Member
  • Trainee
  • Designer
  • Passionpreneur
  • Developer
  • Adjunct
  • Synergist
  • Investor
  • Technician
  • Proactivator
  • Secretary
  • Best Practices
  • Creative Models
  • Interdepartmental Mobility
  • Onboarding
  • Dynamics
  • Certified Thinking
  • Customer Service
  • Parvosian Acquisition
  • Core Competencies
  • Monotonal Alignmnet
  • Envisioned Growth
  • Metrics
  • Commercial Rebranding
  • Infrastructure Intermediaries
  • Value
  • Cultivation
  • Administration Negotiation
  • Defence (Canadian spelling)
  • Marketing
  • Business Affairs
  • Council Affairs
  • Data Insights
  • Trust Division
  • Planetary

Requiem Mods

ParazonMods

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 Sisters of Parvos's Immortality.


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.
  • Sisters and Hounds are immune to the Buzlok Alternative Fire. They can still be tagged but the bullets will curve around them and rarely hit unless they are moving toward where they are curving. This prevents players from tracking where Sisters teleport and hide to as well as simply make them harder to deal with in general.
  • 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 Radiation status effects MAY prevent this.

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 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 confrontation was supposed to be in Pluto Proxima before they decided to move it to Neptune Proxima.

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 Null Stars and Baruuk's 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 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.
  • Sister Candidates sometimes won't spawn even after meeting the necessary criteria, seemingly caused by the player completing the Granum Void too close to extraction since the spawn point might be based on a set number of rooms left to traverse. It's advised to only attempt the Granum Void if you find a Golden Hand close to the start of the level rather than the end for a higher success rate.

Media


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