Free Attack
Buff
Your next Attack costs 0 .
Unrelenting (2 Energy, Uncommon, Ironclad) deals 14 damage (20 upgraded) and then gives you 1 stack. While you hold it, every Attack in your hand shows a cost of 0, and the first Attack you actually play removes 1 stack. Each stack pays for exactly one Attack, and repeated Unrelentings add stacks, so three plays make your next three Attacks free.
Where it comes from
Cards that apply Free Attack
Unrelenting
Attack
2
Deal 14 damage.
The next Attack you play costs 0 .
The next Attack you play costs 0 .
UnrelentingDeal 14 damage.
The next Attack you play costs 0 .
The next Attack you play costs 0 .
Notes
The discount is applied late in the cost pipeline and sets the cost to 0 outright instead of reducing it. The stack is spent by the next Attack whatever it would have cost, so a 0-Energy Shiv wastes it; play cheap Attacks first and the expensive one after. Only cards played from your hand count. Pounce and Synthesis give the Skill and Power versions.
Purchase today
If you haven't bought Slay The Spire 2 yet, it's time. Support the devs, they made an amazing game.
Get it on Steam