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 - $10.00
LP - $8.00
MP - $6.00
HP - $4.00
DMG - $2.00