Geralf's Masterpiece is a mythic Creature — Zombie Horror card from Shadows over Innistrad (SOI), collector number 65. Current market price: $0.31 (foil $0.71), TCGplayer market prices via Scryfall.
Flying This creature gets -1/-1 for each card in your hand. {3}{U}, Discard three cards: Return this card from your graveyard to the battlefield tapped.