The Great Evil
The Great Evil of the Multiverse. It has many forms, many avatars, many servants. It is the creator of the Anti-Life Equation and is known by many names such as One Below All, The Great Evil Beast, Azathoth and has it's own avatars, aspects, servants, and heralds, many of whom are unaware of their own purpose, which is to do the will of the great evil. Only one, it's creation Nyarlathotep, is aware of it's true nature as the power behind all that is evil, and acts as it's prophet and messenger.