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For the Grineer counterpart, see Kuva Larvling.

A Candidate is a unique Corpus enemy. They can be mercied at low health to spawn a Sister of Parvos.

Candidates will only spawn upon qualifying for Rank 1 rewards or greater of the Nightmare difficulty (using a Zenith Granum Crown) in the Granum Void of any mission in the Corpus Ship tileset. Players must also have completed The War Within and Call of the Tempestarii quests to be able to summon one.

Farming Locations[]

These are based on opinions and may not be 100% true. These should be viewed as advice for finding the enemies until better facts are proven.

Target Planet Name Type Level Tile Set
IconCorpusB.svg Phobos Roche Exterminate 10 - 12 Corpus Ship
IconCorpusB.svg Phobos Skyresh Capture 12 - 14 Corpus Ship
HyenaPack sigil b.png Neptune Psamathe Assassination 30 - 32 Corpus Ship
IconCorpusB.svg Pluto Acheron Exterminate 34 - 38 Corpus Ship
IconCorpusB.svg Pluto Cypress Sabotage 34 - 38 Corpus Ship
IconCorpusB.svg Pluto Hydra Capture 30 - 34 Corpus Ship


  • Since Candidates only spawn after entering the Granum Void with a Zenith Granum Crown, this would mean a Sister of Parvos can only be "born" on Venus, Mars, Phobos, Jupiter, Europa, Neptune, and Pluto.
    • Although not the dominant tileset, there is at least one node on Mars, Jupiter, and Europa that uses the Corpus Ship tileset and thus by extension gives access to the Golden Hand Tributes; Gradivus and Wahiba on Mars, Adrastea on Jupiter, and Valac on Europa.
    • As Interception missions and Defense missions onboard Corpus Ships do not have Golden Hand Tributes, those mission nodes generally cannot be used to summon Candidates. The starting room where players spawn in might have a Tribute, but not the tile where the mission takes place.
  • If a Candidate is downed and left alone for 30 seconds, it will die without creating a Sister.
  • Once downed, the Candidate will display an icon and name of the Tenet Weapon the created Sister will possess above its head, when standing within 3 meters of it.
    • If the Candidate is ignored, the displayed weapon will not show up again in the pool until the entire weapon pool is rejected.
  • In a co-op session, only the player who delivers the killing blow is allowed to mercy the Candidate and generate a Sister.
  • A prospective weapon icon will appear only when a Candidate has finished kneeling animation. If a Candidate is suspended mid-animation, e.g. by Mod TT 20px.png Path of Statues, it can still be mercied but with no icon to indicate a weapon.
  • A Candidate shares the same waypoint icon with the Treasurer, thus can sometimes be confusing if both a Candidate and a Treasurer spawn.


  • Consider doing missions in Solo mode to ensure that you bring the Candidate's health down to mercy it.
  • Be mindful of which Progenitor Warframe you are using when looking to summon a Sister, to ensure you get the element bonus that you want on the Sister's weapon.
Element Progenitor Warframe*
DmgImpactSmall64.png Impact BaruukIcon272.png BaruukGaussIcon272.png GaussGrendelIcon272.png GrendelRhinoIcon272.png RhinoSevagothIcon272.png SevagothWukongIcon272.png WukongZephyrIcon272.png Zephyr
DmgFireSmall64.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 BansheeCalibanIcon.png CalibanExcaliburIcon272.png ExcaliburGyreIcon272.png GyreLimboIcon272.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

  • Be aware that you can preview the Sister's weapon by standing near the Candidate before creating her with a mercy kill. If you do not want the weapon, ignore the downed Candidate and finish (or abandon) the mission normally.


  • A Candidate seems to be a female variant of the Treasurer. The most notable differences between the two are that the Candidates have a more bronze-aesthetics around them and their faces are hidden behind a mask.


  • Candidates sometimes won't spawn even after meeting the necessary criteria (Zenith Coin, Rank 1, and completed quests). This may be 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.[1][2]
  • Casting Ensnare130xDark.png Ensnare on a Candidate will cause the metal wire to appear around her body but will not immobilise her in any way.
  • The weapon may not appear above a Candidate's head when downed if a Treasurer is alive. Killing the Treasurer may restore the missing weapon visual but they must be killed quickly.



Patch History[]

Hotfix 31.1.7 (2022-02-23)

  • Fixed a Sister of Parvos candidate not showing what weapon is offered if the Treasurer is also alive.

Update 31.1 (2022-02-09)


As the pool of Adversary weapons grows and your checklist fills out, the natural chance of finding a Progenitor (Larvling or Candidate) with the exact weapon you desire shrinks. This Adversary Weapon Generation Quality of Life change is meant to reduce randomness over time of what weapon a Progenitor Candidate (Sister) or Larvling (Kuva Lich) can spawn with.

How it works:

By skipping a Progenitor (choosing not to Mercy them) the spawned weapon is then put into a ‘reject’ pile for that round of Adversary generation, meaning that it will not appear again and ultimately reducing the weapon pool each time you ‘reject’.

The list of rejected weapons is cleared once you accept an Adversary and the process would start again from a clean slate for both Sister or Kuva Lich the next time you go looking for an Adversary. This list clearing applies to both Sister and Kuva Lich, meaning once the chosen Adversary is Converted or Vanquished, the list clears for both factions.

Test Cluster change: Kuva Lich/Sister of Parvos weapon reject list will now reset if you reject every possible weapon.

Hotfix 30.6.1 (2021-08-10)

  • Fixed Sister Candidate dissolving into nothing if downed after being affected by Nova’s Molecular Prime, thus denying the player of a Sister opportunity.

Hotfix 30.5.1 (2021-07-06)

  • Fixed a script error when the Candidate despawns.

Update 30.5 (2021-07-06)

  • Introduced.