Hullbreaker Horror is a rare Creature — Kraken Horror card from Innistrad: Double Feature (DBL), collector number 330. Current market price: $9.97 (foil $52.62), TCGplayer market prices via Scryfall.
Flash This spell can't be countered. Whenever you cast a spell, choose up to one — • Return target spell you don't control to its owner's hand. • Return target nonland permanent to its owner's hand.