Purifying Dragon is a uncommon Creature — Dragon card from Innistrad: Double Feature (DBL), collector number 155. Current market price: $0.24 (foil $0.76), TCGplayer market prices via Scryfall.
Flying Whenever this creature attacks, it deals 1 damage to target creature defending player controls. If that creature is a Zombie, this creature deals 2 damage to it instead.