Monstrous Rage is a mythic Instant card from Marvel Universe (MAR), collector number 72. Current market price: $1.05 (foil $3.41), TCGplayer market prices via Scryfall.
Target creature gets +2/+0 until end of turn. Create a Monster Role token attached to it. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1 and has trample.)