Fused Reservoir is a Warframe Augment Mod/Exilus Mod for WispWispIcon272.png Wisp that allows her to spawn a fourth ReservoirsReservoirs130xDark.png Reservoir with all three buffs at an increased energy cost.


Rank Energy cost Cost
0 300% 6
1 270% 7
2 250% 8
3 200% 9


  • This mod can be acquired by attaining the rank of Genius under Cephalon Suda, or the rank of Flawless under New Loka, and spending ReputationBlackx64.png 25,000 to purchase.


  • Energy cost is not affected by mods.
  • Fused Reservoir counts as 3 summoned Reservoirs and Wisp is still limited to 6 total Reservoirs at once, meaning only 2 of the combined versions can be used at any given time.
  • Doubles the energy cost of using the combined version, rather than tripling it, saving 25 base energy when using the combined version.
  • The combined version has all three motes, regardless of whether Wisp is of a high enough level to have them.


  • Useful for Empowered builds, requiring only one instance of Empower to charge all three versions at once, saving energy.
  • Because it simply adds another type of Reservoir and does not remove the normal ones, the player can still mix and match to place more motes in more locations if necessary (such as Defection), keeping in mind the 6 max Reservoirs still applies.

Patch History[]

Hotfix 30.2.2 (2021-05-13)

  • Fixed seeing [PH] Universal Reservoir when casting Wisp’s Fused Reservoir.

Update 30.2 (2021-05-12)

  • Introduced.