Archghoul of Thraben is a uncommon Creature — Zombie Cleric card from Innistrad: Double Feature (DBL), collector number 360. Current market price: $0.41 (foil $2.10), TCGplayer market prices via Scryfall.
Whenever this creature or another Zombie you control dies, look at the top card of your library. If it's a Zombie card, you may reveal it and put it into your hand. If you don't put the card into your hand, you may put it into your graveyard.