RX-78-2 Gundam

Trample, vigilance
When RX-78-2 Gundam attacks, you may pay {r}{x} and tap it. If you do, destroy target artifact
with mana value X or less. If the artifact
destroyed this way was a vehicle, draw a card.
Crew 2 (Tap any number of creatures you control
with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)