Pipsqueak, Rebel Strongarm is a uncommon Legendary Creature — Human Rebel Ally card from Avatar: The Last Airbender Eternal (TLE), collector number 82. Current market price: $0.19 (foil $0.29), TCGplayer market prices via Scryfall.
Pipsqueak can't attack alone unless he has a +1/+1 counter on him.