The Source of All Evil

The Source, or The Source of All Evil is the absolute leader evil beings and all the Underworld.

Primarily, it is a position. The Source orchestrates all doings of all evil beings, and succeeds to his thrown through battle and gaining power from others.

Secondly, the Source is a being. A demon with half a face, he was mauled by the battle that brought him to power centuries prior. He had tribal markings across his face as well, and deathly black eyes. ("Charmed and Dangerous")