Graf Harvest is a uncommon Enchantment card from Eldritch Moon (EMN), collector number 90. Current market price: $0.32 (foil $1.30), TCGplayer market prices via Scryfall.
Zombies you control have menace. (They can't be blocked except by two or more creatures.) {3}{B}, Exile a creature card from your graveyard: Create a 2/2 black Zombie creature token.