Glorybringer is a rare Creature — Dragon card from Amonkhet Promos (PAKH), collector number 134s. Current market price: — (foil $7.82), TCGplayer market prices via Scryfall.
Flying, haste You may exert this creature as it attacks. When you do, it deals 4 damage to target non-Dragon creature an opponent controls. (An exerted creature won't untap during your next untap step.)