This demon is a mercenary who is hellbent on doing his mission. In Karyana's story, he's Xelnos' lackey, but is ambitious as hell; he doesn't just obey Xelnos' orders to make Karyana's life a living hell, but he actually wants to overthrow Xelnos and take his place. Considering Pison is killed several times in Karyana's story, he always comes back from hell stronger and more menacing, but always uses his signature weapon - a whip some say was made when he ripped out his own tail.
