Cemetery Desecrator is a mythic Creature — Zombie card from Innistrad: Crimson Vow Promos (PVOW), collector number 100p. Current market price: $0.74 (foil $1.26), TCGplayer market prices via Scryfall.
Menace When this creature enters or dies, exile another card from a graveyard. When you do, choose one — • Remove X counters from target permanent, where X is the mana value of the exiled card. • Target creature an opponent controls gets -X/-X until end of turn, where X is the mana value of the exiled card.