Legendary Enchantment — Background

Dungeon Delver

Dungeon Delver trading card

Legendary Enchantment — Background3 exact printings

Commander creatures you own have "Room abilities of dungeons you own trigger an additional time."

From Magic: The Gathering.

Exact printings

Commander Legends: Battle for Baldur's Gate - #483 · uncommon · ETCHED · EN
Commander Legends: Battle for Baldur's Gate - #67 · uncommon · FOIL · EN
Secret Lair Drop - #7103 · rare · FOIL · EN

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ofsmwbbappb1hfyr6gp7p.