Regicide

Enemies are immune to suit powers of their matching suit — the card’s number still adds to damage but the suit effect doesn’t happen unless a Jester is played to negate immunity (see Enemy Immunity and Playing the Jester) (page 2).

Spades reduce the enemy’s attack and their shield effects are cumulative for all spades played against that enemy and remain in effect until the enemy is defeated (page 1).

Whenever both a Hearts heal and a Diamonds draw are resolved together, resolve the Hearts healing before resolving Diamonds drawing (pages 1–2).

Animal Companions cannot be part of multi-card combos; they may be played alone or paired with exactly one other card (including another Animal Companion), count as 1 toward attack, and their suit power also applies (page 2).

If damage equals the enemy’s health exactly, place that enemy facedown on top of the Tavern deck instead of the discard pile; otherwise place it in the discard pile, then discard players’ cards and reveal the next Castle card (page 1).

Yielding skips Steps 2 and 3 — you do not activate suit powers or deal damage and instead move directly to Step 4 to suffer damage; you may not yield if every other player yielded on their last turn (pages 1–2).