Alegar

Alegar was the first god, he was the beginning as he will be the end, he is absolutely everything: every single of infinite possibilities and probability, every of infinite reality, timeline, universe or dimension and everything within each of, i.e. absolutely all at once, no exceptions and limitations, all embodied in a single being. A single, timeless everything.

Description
Alegar's manifestation looks like a rift in time and space shaped into humanoid form, he has never bothered with mortals as he is the caretaker and leader of the gods.

Power
Alegar is the supreme being and the source of everything. The true master and wielder of any and every other power that is deemed omnipotent. Omnipotence incarnate, he is fully devoid of any potential weakness : his power cannot be cut off or stolen, nor can its use be disturbed, backfired or turned against him.

A mandatory existence, Alegar is irreversibly omnilocked, existing outside everything, space, time, probability, nothingness and reality itself completely unaffected by it's rules. He cannot be destroyed, changed, removed or written out of existence. Being immune even to his own powers. He is described him as having absolute control of all aspects of the universe, and can freely alter its nature, content, inhabitants, history, destiny, etc. All rules can be changed on a whim or flat out ignored by him, as he is literally the one dictating them. Fully transcendent existence, both character and storyteller, of reality, controlling it like an author controls a work of fiction, with the same absolute power and overwhelming authority. He is beyond even the Impossible.

Trivia

 * The name "Alegar" is based on Alpha and Omega which is what Alegar is, the God of Cheraulvia itself.