サンダーストーン

You must choose exactly one of the three actions on your turn: Visit the Village, Enter the Dungeon, or Rest, and perform the steps listed for that action in order, ending by discarding and drawing six cards (page 4).

Dungeon Effects occur in Step 2 (preparation) and any card destroyed by a Dungeon Effect is immediately removed and cannot be used; Battle Effects happen during the fight and cards destroyed by them remain in play until the battle ends (page 11).

Start with the base Light Penalty equal to the Monster’s rank, add any Monster Light modifiers, subtract total Light from your revealed cards, then double the final penalty and subtract that from your Attack (each uncancelled point reduces Attack by 2); Light cannot give a positive Attack bonus (treat excess Light as zero) (pages 12–13, 24).

Only reshuffle your discard pile to form a new draw deck when you need to draw and the draw deck is empty — draw remaining cards first, then reshuffle the discard to continue drawing; do not reshuffle preemptively (page 5).

Leveling occurs during Visit the Village Step 5 after purchases: you destroy the old Hero and place the higher-level card on top of your discard pile, so the upgraded Hero is not available to use until you draw it later (page 8; see Visit the Village order on page 4).

A Breach effect triggers once when a Monster with Breach reaches Rank 1 from any higher rank during play, but Breach effects that are in Rank 1 at setup do not trigger (pages 9, 19).