Before Creation was Kaos. The dark and empty Void. Silent. Changeless. Empty.
With the dawn of time, came the potential for change, and so Kaos became Chaos, the breakdown of order, and the potential for change, the Trickster God.
In time, this personification became attached to a certain world, and took on a form to walk amongts its Little Ponies.
He never thought he'd become attached to any of them. He never thought he'd love them. And he certainly never thought he'd lose his closest friends.

It's been done to death, but my take on a Discord losing Fluttershy fic. AU, only difference being Discord is Eternal, all else follows canon.
For the Angst category of Bicyclette's "A Thousand Words" contest.