Drill Rig

Mountainwalk, Menace, Double Strike
Crew 6 (Tap any number of creatures you control with power 6 or more: This vehicle
becomes an artifact creature until end of turn.)
If Drill Rig would be destroyed in combat
and removed from the battlefield, instead
put 4 stun counters on it. (If a permanent
with a stun counter would become untapped, instead remove a stun counter from it.)