Boss database
Act 2 Boss Prep
Mid-run damage, block, and scaling audit
Act 2 Boss Prep turns mid-run boss footage into a practical checklist for decks that are not finished yet.
Primary keyword: slay the spire 2 act 2 bossesMedium confidence
Primary check
Immediate output before scaling
Secondary check
Bad-hand block and recovery
Mid-run checklist
Act 2 bosses punish decks that look promising but are not yet reliable. The preparation page should ask whether the deck can block while developing, deal damage without perfect setup, and recover when the first payoff card arrives late.

- Check whether the deck has damage on non-perfect hands.
- Keep one defensive plan that works before scaling is online.
- Use potions to bridge the turn the engine cannot cover yet.
Reward discipline
Mid-run rewards should be scored by what they fix before the boss. A speculative synergy card can be worse than a plain card if the deck is still missing damage, block, draw, or a bad-hand answer.