Adrenaline

During battle, the troop gains attack speed every second it fights (shown as 1% per second since Patch #30).

How players use it

King of Time Warper plan (Vao): level a Warper fast. Regression lowers a level but keeps its stats, so the plot can level again. Since 1.0 it cannot target level-1 plots. Rewind replays your last cards. With Brutal (+1 Adrenaline stack) Vao’s Warper summons almost continuously, and Farms raise Warper count; Vao stops at 200 to 300 to avoid crashes.
Regression, Rewind and Temp Null Adrenaline adds attack speed every second of battle; the Brutal perk starts all troops with a stack.

In the King of Time's 9-card deck: a run as this king can start with it, and losing a battle offers cards from your own deck.
Loot after beating the King of Time in battle when that king is one of your enemies.
Merchant: Jack of Magic (tomes and enchantments).
Joker mode: pick it for a custom deck.

Entry	Effect
Brutal King of Time perk	Your troops start with +1 Adrenaline stack.

Patch #30 2026-09-15
Brutal (Time): ALL your troops now start with +1 Adrenaline stack.
Patch #30 2026-09-15
Fixed Adrenaline display math: it now shows 1% again as intended.
Patch #31 2026-10-07
Adrenaline now has a dedicated FX.

Lines from the official Steam patch notes since Patch #18 that name this card.

Data: 9 Kings 1.0 card table on the official wiki, imported 2026-11-13.