Thor, Guardian of Midgard is a rare Legendary Creature — God Warrior Hero card from Marvel Super Heroes Commander (MSC), collector number 503. Current market price: $2.34 (foil $2.28), TCGplayer market prices via Scryfall.
Flying Whenever a source you control deals noncombat damage to an opponent, you may exile that many cards from the top of your library. You may play those cards this turn.