Theorylytics
11

Fleeting Expertise

+60% Ability Efficiency

WARFRAME
RareSituationalWarframe · WARFRAME

Fleeting Expertise

+60% Ability Efficiency · -60% Ability Duration — WARFRAME mod.

Fleeting Expertise is a Rare warframe mod for WARFRAME. Max rank: +60% Ability Efficiency · -60% Ability Duration.

Polarity
NaramonNaramon
Compat
WARFRAME
Drain @ rank
11 / 6matched
Max effect
+60% Ability Efficiency · -60% Ability Duration

Rank scrubber

Rank 5 / 5

  • +60% Ability Efficiency
  • -60% Ability Duration

Drain 11 unmatched · 6 with Naramon match · max 11

Overview

Starts at (rank 0)

  • +10% Ability Efficiency
  • -10% Ability Duration

Max rank (5)

  • +60% Ability Efficiency
  • -60% Ability Duration

Rank Table

RankEffectDrainMatched
0
  • +10% Ability Efficiency
  • -10% Ability Duration
63
1
  • +20% Ability Efficiency
  • -20% Ability Duration
74
2
  • +30% Ability Efficiency
  • -30% Ability Duration
84
3
  • +40% Ability Efficiency
  • -40% Ability Duration
95
4
  • +50% Ability Efficiency
  • -50% Ability Duration
105
5
  • +60% Ability Efficiency
  • -60% Ability Duration
116

Capacity & Forma

At max rank

Unmatched

11

Naramon match

6

Max drain 11 unmatched / 6 with a matching Naramon polarity (base 6, ranks 0–5).

Drop Sources

Farm call: Best listed source: Derelict Vault at 4.17%.

  • TopDerelict VaultRare · 4.17%

Worth the Slot?

  • Evaluate whether +60% Ability Efficiency · -60% Ability Duration is worth a slot on your WARFRAME build.
  • Polarity is Naramon; matching halves capacity cost at every rank.
  • Augments are kit-specific — only slot when the ability change fits the mission.