0 (God Level)

A Level Zero God is a hyper-omnipotent being that exists beyond the laws of the universe and outside the limitations of dimensions and reality. Much like most Gods, level zero Gods cannot be seen by a mortal beings. Because of their incredibly impossible plane of existence, they are able to manipulate realities; therefore erasing away any Gods below their level.

There are only two known level zero Gods: Onset and Nezexis.

Onset
Onset is the God of Creation. He is responsible for creating reality and the multiverse. Everything from a new idea to a baby's first adult tooth is credited to his power. Every God was created by him, as well as the laws that govern the cosmos. Typically seen as benevolent, he is the creator of evil, war, and sin.

Onset co-created time with Nezexis.

Nezexis
Nezexis is the Goddess of the End. She is responsible for the ending of all things. Typically seen as malevolent, she is also thought to bring about the end of pain, disease and wars.