Deathmark Prelate is a uncommon Creature — Human Cleric card from Legions (LGN), collector number 65. Current market price: $0.13 (foil $0.65), TCGplayer market prices via Scryfall.
{2}{B}, {T}, Sacrifice a Zombie: Destroy target non-Zombie creature. It can't be regenerated. Activate only as a sorcery.