The rise of Zelegith
The Creator is the being that created the gods which in turn created all the planes of existence. When he created the gods, he gave them near unlimited powers to shape the world as they see fit. He gave them one simple rule “Do not interfere with the affair of your creations, their doom or glory is their own to make”. At one point the gods broke this rule and it was known as “The Great Humbling”. Since then Zelegith figured out a way to siphon a slight amount of power from the creator and that helped him ascend to godhood.