Dungeon Map is a uncommon Artifact card from Adventures in the Forgotten Realms (AFR), collector number 242. Current market price: $0.29 (foil $0.29), TCGplayer market prices via Scryfall.
{T}: Add {C}. {3}, {T}: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)