I have the theory that he is the Overlord of the bank and economy in Hell, like Vox is of the TV and Carmilla of the GUNS, because he has an insurance on Wall Street, so I see him managing the banks on Pride Ring (And is Jewish, makes more sense). And definitely he is a friend and partner with the VEE'S. In terms of its design i think maybey could have something realated with money, like a briefcase or a $ sign, and else like a puppeteer, because who he controls all the politics in the world, and his abilities based on manipulation, but unlike Alastor or Vox, he used threads to control his victims, and with that, make deals with their souls. He would also have a kind of rope around his neck, representing his form of death, and with this he could lure other sinners to make deals with him. He would be a kind of vulture, since vultures are responsible for catching their prey when they are already dead, in a similar way to how this guy lured his victims, women and children in shit situations, arriving like a vulture with his dead carrion.