Arcane Ultimatum is an Arcane Enhancement that, upon performing a melee finisher kill, provides a chance to increase Warframe Armor for a short time.

Can be sold for Credits641,000.


Rank Chance Effect Duration
0 25% 200 8s
1 50% 400 15s
2 75% 600 23s
3 100% 800 30s
4 100% 1000 38s
5 100% 1200 45s


Awarded for capturing the Eidolon Gantulyst.

Scarlet Spear sells ArcaneUltimatum64x Arcane Ultimatum for 2000 Scarlet Credits.
Drop Chance Expected Nearly Guaranteed
Arcane 5.29% 18 – 19 captures 127 ± 42 captures

Expected refers to total number of attempts a player can expect to need in order to receive at least one of each drop associated with the respective values.

Nearly Guaranteed refers to the total number of attempts a player needs to obtain a 99%, 99.9%, and 99.99% probability to receive at least one of each drop associated with the respective values.

For more detailed definitions and information on how these number were obtained, visit here.


  • The additional armor is unaffected by mods. For example, a ChromaIcon272 Chroma with a max rank Mod TT 20pxSteel Fiber, and an active rank-5 ArcaneUltimatum64x Arcane Ultimatum will have an armor rating of:
Armor = Base Armor × (1 + Armor Mod) + Arcane Ultimatum
Armor = 350 × (1 + 1.1) + 1200
Armor = 1935
  • The effect can be activated by the user's Sunika or Sahasa Kubrow performing a finisher attack via their unique precepts.
  • Duration can be refreshed.


  • This arcane was originally dropped in The Jordas Verdict. Following Update 22.14, all Trial missions were retired from the game and the arcane drops in turn were moved to the Eidolons instead.

Patch HistoryEdit

Update 22.12
  • Armor applied is now an absolute amount (instead of relative) with a base value of 150 with a duration of 5 seconds at base rank.

Update 17.9.1

  • Introduced with The Jordas Verdict.
CosmeticEnhancer Arcanes
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