Element Progenitor Warframe*
Impact DamageDmgImpactSmall64.png Impact BaruukBaruukIcon272.png BaruukGaussGaussIcon272.png GaussGrendelGrendelIcon272.png GrendelRhinoRhinoIcon272.png RhinoSevagothSevagothIcon272.png SevagothWukongWukongIcon272.png WukongZephyrZephyrIcon272.png Zephyr
Heat DamageDmgHeatSmall64.png Heat ChromaChromaIcon272.png ChromaEmberEmberIcon272.png EmberInarosInarosIcon272.png InarosNezhaNezhaIcon272.png NezhaProteaProteaIcon272.png ProteaVaubanVaubanIcon272.png VaubanWispWispIcon272.png Wisp
Cold DamageDmgColdSmall64.png Cold FrostFrostIcon272.png FrostGaraGaraIcon272.png GaraHildrynHildrynIcon272.png HildrynRevenantRevenantIcon272.png RevenantTitaniaTitaniaIcon272.png TitaniaTrinityTrinityIcon272.png Trinity
Electricity DamageDmgElectricitySmall64.png Electricity BansheeBansheeIcon272.png BansheeExcaliburExcaliburIcon272.png ExcaliburLimboLimboIcon272.png LimboNovaNovaIcon272.png NovaValkyrValkyrIcon272.png ValkyrVoltVoltIcon272.png Volt
Toxin DamageDmgToxinSmall64.png Toxin AtlasAtlasIcon272.png AtlasIvaraIvaraIcon272.png IvaraKhoraKhoraIcon272.png KhoraNekrosNekrosIcon272.png NekrosNidusNidusIcon272.png NidusOberonOberonIcon272.png OberonSarynSarynIcon272.png Saryn
Magnetic DamageDmgMagneticSmall64.png Magnetic HarrowHarrowIcon272.png HarrowHydroidHydroidIcon272.png HydroidLavosLavosIcon272.png LavosMagMagIcon272.png MagMesaMesaIcon272.png MesaXakuXakuIcon272.png XakuYareliYareliIcon272.png Yareli
Radiation DamageDmgRadiationSmall64.png Radiation AshAshIcon272.png AshEquinoxEquinoxIcon272.png EquinoxGarudaGarudaIcon272.png GarudaLokiLokiIcon272.png LokiMirageMirageIcon272.png MirageNyxNyxIcon272.png NyxOctaviaOctaviaIcon272.png Octavia

*Note that the Primed, Umbra or Shadow 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.


A Tenet variant of a weapon will only provide mastery points once. A second weapon of the same variant but with a different Lich 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 ParacesisBallasSword.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.

Example: Kuva KohmKuvaKohm.png Kuva Kohm (A) has 40% Heat DamageDmgHeatSmall64.png Heat Damage and an Orokin Catalyst. Kuva Kohm (B) has 52% Radiation DamageDmgRadiationSmall64.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% Heat DamageDmgHeatSmall64.png Heat or Radiation DamageDmgRadiationSmall64.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% Heat DamageDmgHeatSmall64.png Heat or Radiation DamageDmgRadiationSmall64.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.

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


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
Impact DamageDmgImpactSmall64.png Impact

Kyruna Ephemera

Heat DamageDmgHeatSmall64.png Heat

Zarina Ephemera

Cold DamageDmgColdSmall64.png Cold

Gloriana Ephemera

Electricity DamageDmgElectricitySmall64.png Electricity

Sybillina Ephemera

Toxin DamageDmgToxinSmall64.png Toxin

Lucretia Ephemera

Magnetic DamageDmgMagneticSmall64.png Magnetic

Solena Ephemera

Radiation DamageDmgRadiationSmall64.png Radiation

Hypatia Ephemera


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.


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.