Earthrumbler 
Artifact — Vehicle
Vigilance, trample Exile an artifact or creature card from your graveyard: This Vehicle becomes an artifact creature until end of turn. Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)
Legality
standardLEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL