Michelangelo, Weirdness to 11 (0288) [Teenage Mutant Ninja Turtles]

Legendary Creature — Mutant Ninja Turtle · {1}{G} · 1/1

When Michelangelo enters, create a Mutagen token. (It's an artifact with "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")
If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead.

Teenage Mutant Ninja Turtles #288 · mythic