So I did some 5 minute research. I'd say [url=http://powerlisting.wikia.com/wiki/Primordial_Force_Manipulation]this[/url] is what gods actually use when they say "divine essence"

And since gods can actually die in this setting, I wouldn't say that gods are omnipotent. The ONLY omnipotent beings are Amul and Fate.

And Time, if you count it as a being.