Michelangelo, Game Master is a common Legendary Creature — Mutant Ninja Turtle card from Teenage Mutant Ninja Turtles (TMT), collector number 118. Current market price: $0.17 (foil $0.23), TCGplayer market prices via Scryfall.
Disappear — At the beginning of your end step, if a permanent left the battlefield under your control this turn, put a +1/+1 counter on Michelangelo.