Mona Lisa Ever Adaptable 126 (Commander: Teenage Mutant Ninja Turtles)

Whenever a player casts a creature spell, you 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.")

NM - $10.60
LP - $8.50
MP - $6.30
HP - $4.30
DMG - $2.20