The Infinite Madness, also known as the One True God, the Ultimate Chaos, God, The All-Seeing Horror, and The Outer Darkness, is the origin of all Eldritch creatures and the ultimate example of antediluvian horror. It is native to Nothing, but the entirety of existence exists for one reason only: to imprison it. It's only goal is to devour the Concept, absorbing it into itself, so that it may finally escape it's prison and return to Nothing.
No entity can fight the Infinite Madness, except not directly. All the other Omnipotents check under their beds for it at night.