Magmatic Hellkite is a rare Creature — Dragon card from Tarkir: Dragonstorm Promos (PTDM), collector number 111p. Current market price: $0.47 (foil $0.79), TCGplayer market prices via Scryfall.
Flying When this creature enters, destroy target nonbasic land an opponent controls. Its controller searches their library for a basic land card, puts it onto the battlefield tapped with a stun counter on it, then shuffles. (If a permanent with a stun counter would become untapped, remove one from it instead.)