Hulk's Thunderclap is a uncommon Sorcery card from Marvel Super Heroes Commander (MSC), collector number 725. Current market price: $0.34 (foil $2.94), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, you may behold a Gamma creature. (You may choose a Gamma creature you control or reveal a Gamma creature card from your hand.) Target creature you control deals damage equal to its power to another target creature. If this spell's additional cost was paid, destroy target noncreature artifact or noncreature enchantment.