Splinter, the Mentor

Legendary Creature — Mutant Ninja Rat

Teenage Mutant Ninja Turtles Eternal·#3·mythic·Andrea Tentori Montalto

$3.54 / €0.84

Foil$0.51 / €0.68

Cardmarket Card Kingdom

Menace
Whenever Splinter or another nontoken creature you control leaves the battlefield, create a Mutagen token.
Partner—Character select (You can have two commanders if both have this ability.)

"We choose what holds us back."

Legal in

Legacy, Vintage, Commander, Brawl, Historic

Rulings (9)

Once the game begins, your two commanders are tracked separately. If you cast one, you won't have to pay an additional the first time you cast the other. A player loses the game after having been dealt 21 damage from any one of them, not from both of them combined.

2026-01-27

An effect that checks whether you control your commander is satisfied if you control one or both of your two commanders.

2026-01-27

If your Commander deck has two commanders, you can only include cards whose own color identities are also found in your commanders' combined color identities. If Donatello, the Brains and Splinter, the Mentor are your commanders, your deck may contain cards with blue and/or black in their color identity, but not cards with red, green, or white. (If Leonardo, the Balance is one of your commanders, your deck may contain cards with any color or combination of colors in their color identity, regardless of who your other commander is.)

2026-01-27

Some spells and abilities that create Mutagen tokens require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. The Mutagen token won't be created.