MenaceWhenever 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.)
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
If one or more tokens would be created under your control, those tokens plus a Mutagen token are created instead.Partner—Character select (You can have two commanders if both have this ability.)
This creature enters with two +1/+1 counters on it.Whenever this creature attacks, double the number of +1/+1 counters on it.When this creature dies, create a number of 1/1 colorless Robot artifact creature tokens equal to the number of +1/+1 counters on this creature.
Vigilance (Attacking doesn't cause this creature to tap.)When Donatello enters, tap up to three target creatures your opponents control. Put a stun counter on each of them. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Whenever a token you control enters, you may put a +1/+1 counter on each creature you control. Do this only once each turn.: Creatures you control gain menace, trample, and lifelink until end of turn.Partner—Character select (You can have two commanders if both have this ability.)