Markov Purifier is a uncommon Creature — Vampire Cleric card from Innistrad: Double Feature (DBL), collector number 508. Current market price: $0.29 (foil $1.15), TCGplayer market prices via Scryfall.
Lifelink At the beginning of your end step, if you gained life this turn, you may pay {2}. If you do, draw a card.