Markov Purifier is a uncommon Creature — Vampire Cleric card from Innistrad: Crimson Vow (VOW), collector number 241. Current market price: $0.33 (foil $0.33), 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.