Repository Skaab is a common Creature — Zombie card from Innistrad: Double Feature (DBL), collector number 340. Current market price: $0.40 (foil $2.10), TCGplayer market prices via Scryfall.
Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, return target instant or sorcery card from your graveyard to your hand.