Space Gods, more powerful, by far, than the Asgardians.
Rulers of and infesting a thousand galaxies.
A Billion Billion of them.
Able to feed off the spectrum of raw emotions across the universe.
Unbeatable, even by Odin. Except by plot device.
Seemingly able to generate new powers, reality and matter manipulation, as needed..
I think u have the task of brushing off all the attributes above AND proving that Ominar can easily defeat, or defeat, at all, Odin.