Turtle Van [Teenage Mutant Ninja Turtles]

Cost: 3 Whenever this Vehicle attacks, put a 1/ 1 counter on target creature that crewed it this turn. Then if that creature is a Mutant, Ninja, or Turtle, double the number of 1/ 1 counters on it.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)