An alcoholic, and a very, very angry man, Brian was driven by an insane jealousy of Bruce for being an object of Rebecca's love.
But there is something that proves his destructive capabilities, beyond his potential to shatter the United States of America with a few footsteps and even his ability to knock back an assortment of superpowered superheroes by simply unleashing his "aura".
With a newly unique level of anger, he garnered an uncontrollable level of power in the process, becoming stronger with every angry moment, and he headed home to take out all the members of the Illuminati who wronged him.