Rocksteady, Mutant Marauder (TMC-033) - Commander: Teenage Mutant Ninja Turtles Foil

Partner with Bebop, Skull & Crossbones (When this creature enters, target player may put Bebop into their hand from their library, then shuffle.)

Trample

Whenever another nontoken creature you control enters, put a +1/+1 counter on target creature.