Galepowder Mage is a rare Creature — Kithkin Wizard card from Duel Decks: Venser vs. Koth (DDI), collector number 12. Current market price: $0.28, TCGplayer market prices via Scryfall.
Flying Whenever this creature attacks, exile another target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.