Hog-Monkey Rampage is a uncommon Instant card from Avatar: The Last Airbender Eternal (TLE), collector number 255. Current market price: $0.12 (foil $0.31), TCGplayer market prices via Scryfall.
Choose target creature you control and target creature an opponent controls. Put a +1/+1 counter on the creature you control if it has power 4 or greater. Then those creatures fight each other. (Each deals damage equal to its power to the other.)