Dashing Bloodsucker is a uncommon Creature — Vampire Warrior card from Duskmourn: House of Horror (DSK), collector number 90. Current market price: $0.15 (foil $0.22), TCGplayer market prices via Scryfall.
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, this creature gets +2/+0 and gains lifelink until end of turn.