In my secret Lore, Nodens is actually one of the oldest beings in the Universe - the sorcerer supreme of this universe, one of the last surviving members of the first sentient race of independent beings to arise from the primordial soup billions of years ago. He's now god-like in power, and while he's not exactly evil, neither is he exactly sane.
The Great Race of Yith would warn humanity against Nodens if they could. They know Nodens has a plan. They were almost victimized by it.
Nodens detests the universe. He believes that the universe is an abomination with no right to exist. But he also knows that there is basically nothing he can do against Azathoth, Yog-Sothoth, or Nyarlathotep. They are the legitimate gods of this illegitimate universe and vastly exceed him in power, or are at the very least immortal and inherently bound to the reality of this universe and it to them.
There is only one thing to do. Get another universe. It should only take a few Trillion POW.
As such Nodens continually schemes to nurture the independent races which arise until they number in the billions upon billions. At that point, he sacrifices the entire world, reaping its POW and storing it for himself. The trick is then to harvest the crop before Nyarlathotep can blight it. Most of the time Nyarlathotep wins this game, and the harvest is lost in an orgy of madness. Occasionally, Nodens wins and stores up great power. Only a few score more sentient species, and he should be able to exit this universe once and for all, and make a new more verdant, more just, and less cruel universe in his own image. Or so he believes.