Really Big Tank

Indestuctible, Deathtouch, Trample
-{p/r}{p/r}: Really Big Tank deals 3 damage to any target
-Crew 4 ( Tap any number of untapped creatures you
control with total power 4 or more: This Vehicle becomes
an artifact creature until end of turn)
({p/r} can be paid as {r} or 2 life.)
Rarely do the guilds cooperate, but when a renegade Izzet
genius sides with the Gruul, things can get messy.