Impenetrable Offense

Polarity: Madurai
Rarity: Rare
Drain: 10 → 13
Fits: Melee

(Stats)

+30% Damage Block
-10% Melee Damage

Not curated. The effect text above comes straight from the game export, which carries per-mod errors. The builder refuses to compute with it.

Drain by rank

R0 10
R1 11
R2 12
R3 13

A matching polarity halves the drain, rounded up; a mismatched one costs more than no polarity at all.

(Acquisition)

No drop table lists Impenetrable Offense. It comes from trading with another player, or Conclave standing — the tables do not cover those.

(Information)

Introduced: 17
Max rank: 3
Tradable: Yes
Transmutable: No
Exilus slot: No
Conclave: PvP only

(Sources)

Polarity, drain, rarity, compatibility and the card art come from the game export (snapshot 19 Sept 2026). Introduction version, tradability, mod sets and the drop tables come from the WARFRAME Wiki , CC BY-SA. Whether an effect is curated is our own judgement, recorded per mod.