Picture I've been meaning to get up for a while.
Meet Perdix, the source and embodiment of all suffering and anguish in the Metaverse. Despite that, he's a very kind-hearted and friendly person, as his position makes him very sympathizing to people's problems. His magic can only create and control sadness, but he tries to help people by exploiting loopholes to REMOVE sadness, even if he can't make happiness.
He is technically the arch-nemesis of Paimon, Sorcerer of Smiles, but they're best buds and try to work together for a common good without breaking their roles. :3