Rules glossary
309.2 Dungeon cards begin outside the game. Dungeon cards aren’t part of a player’s deck or sideboard. They are brought into the game using the venture into the dungeon keyword action. See rule 701.49, “Venture into the Dungeon.”
- 309.2a If a player ventures into the dungeon while they don’t own a dungeon card in the command zone, they choose a dungeon card they own from outside the game and put it into the command zone.
- 309.2b A dungeon card that’s brought into the game is put into the command zone until it leaves the game.
- 309.2c Dungeon cards are not permanents. They can’t be cast. Dungeon cards can’t leave the command zone except as they leave the game.
- 309.2d If an effect other than a venture into the dungeon keyword action would bring a dungeon card into the game from outside the game, it doesn’t; that card remains outside the game.