Mighty Mutanimals is a uncommon Creature — Mutant Rebel card from Teenage Mutant Ninja Turtles (TMT), collector number 21. Current market price: $0.19 (foil $0.30), TCGplayer market prices via Scryfall.
When this creature enters, create a 2/2 red Mutant creature token. Alliance — Whenever another creature you control enters, put a +1/+1 counter on target creature you control.