Yanuxalap

Yanuxalap, also known as Yanaxulap or Yan, is the most powerful being in the Continuum, period. He exceeded the True God in power by absorbing many other beings powers and has created many behemoths like Cthulhu and the Old Ones. He has many forms and can shapeshift at will. His mere existence is what causes many Cracks in Reality. He can phase through Fictions with ease and can control trillions of bodies at once. He is omnipotent and immortal and has always been alive.

Origins
He has always just been  there, and will continue to be  there  until the end of the Fiction (If that ever even occurs). There is no true known origin story for Yanuxalap.

Description
Taking many forms, his former form is a tall, black, alien form with red eyes, red wings, large claws, and a huge mouth. He is also known to be extraordinarily large.

His recent form is a humanoid with red scars (presumably a crimson light) around the body, arms and legs. Sharp blades on his elbow, most decently the latest common form