Monotheism: Then there was one

Christians believe that their religion is the most accurate theory of life, but it was those who followed Greek Mythology who were more accurate at one point.
In the heavens, the pantheon of deities lived, overlooking the Universe and arguing over how things should be run.
Many wars were had, over many petty things, such as the noise of a cat, or the colour of sunset. (Incidentally, the cat became a compromise).
Eventually, one group of deities banded together, deciding that humans should be left alone and studied from afar.

This did not go down well with the other deities, opposition grew thick and fierce.
But even that didn’t take long to divide into smaller groups, each with their own ideas of what should be done with humanity.
Their war was long, and bloody, spanning centuries. Meanwhile, the humans, forgotten from the conflict, in turn forgot about their supreme beings.
Temples became abandoned and ruined, and prayers became nothing more than whispers.

The struggle ended in one final battle, on a battlefield never seen by man.
Sides banded together until there were just two, who charged into the brawl. After that, it was a free-for-all.
Enemies would team up on a foe, only to stab each other in the back.

At long last, one outlasted the rest.
He was a minor deity, one not mentioned among the many stories.
Like the others, he was arrogant, prideful, and spiteful.
He would return from the battlefield, to Earth, and smile as he gazed upon his prize.
His trophy, for him alone.