Mecha-Torbran

Mecha-Torbran can be your commander.
If a vehicle or red source you control would deal
damage to an opponent and Mecha-Torbran is a creature, it deals that much damage
plus 4 instead.
Crew: 2, {w/b}{w/b} (Tap any number of untapped
creatures you control with total power 2 or greater and
pay {w/b}{w/b}. This permanent becomes an artifact
creature until end of turn)