Aftershock

Though Aftershock may have been different once, the war has turned him into a sociopathic misanthrope, filled with scorn for both Autobots and Decepticons alike. He'll agree to Powerlinx with anyone so long as it means a high body count; of course, he's really just killing time until one side finally claims victory. Then he'll only have half as many bulks to destroy in his chargeable cannon mode.