Wingnut, Bat on the Belfry is a uncommon Legendary Creature — Bat Mutant card from Teenage Mutant Ninja Turtles (TMT), collector number 110. Current market price: $0.16 (foil $0.23), TCGplayer market prices via Scryfall.
Alliance — Whenever another creature you control enters, Wingnut gains your choice of flying, menace, or haste until end of turn. Whenever Wingnut attacks, each other attacking creature gets +1/+0 until end of turn.