
Commander creatures you own have "Room abilities of dungeons you own trigger an additional time."
Dungeon Delver has 3 printings, first in Commander Legends: Battle for Baldur's Gate (2022). EDHREC ranks it #9,117 among Commander cards. It appears most in Sefris of the Hidden Ways decks (7,785 on EDHREC). It has 12 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.