In the beginning there was nothingness. From the nothingness came the First Serpent, The Wyrm of Chaos, The Dragon Discord. He abhorred the void and sought to fill it with things. Many strange things came and went, and he did revel in his chaos. He made earth that his creations may walk and draw sustenance, and sky that they may breathe and water that they may drink.
For a while his creations did exult themselves with these things. Then Discord said "As it is a blessing, it shall also be a curse! As ye did walk upon earth, it shall now be unsteady at times and take care that thou should not be under it!" And ground did shake and the rocks and boulders did crush and molten fire did spew forth at random intervals. This did please Discord because as they did need the ground for walking and for drawing sustenance but they were also a feared of it.
Enjoying the misfortunes he heaped upon them, he again said "As it was a blessing, it shall also be a curse! The Sky, bringer of warmth and life, shall also torment ye!" As before the sky opened up with many horrors, the least of which was that Rain, bringer of water to places far away from the rivers and oceans, now also flooded and caused countless injuries and aliments. Other horrors included hail that beat and destroyed things, winds that ripped trees out by the roots, and snow that could mean death for those caught in it. This did please Discord as they needed the sky for warmth and life but where the horrors of wind and hail and snow did torment them endlessly.
Enjoying the new misfortunes as well as the ones already heaped upon them, He again said "As it was a blessing, it shall also be a curse! Water, giver of life and sustenance shall also take it away from ye!" And as before, the water turned on them. Powerful tides and currents sucked the unwary into abyss, while on land it did ravage everything in its path. And Discord enjoyed these new misfortunes most because every blessing water brought also was a curse.
As he lorded over the earth, He did torment his creations endlessly in new ways. Fire was introduced as was disease. He laughed as his creations withered in misery and agony, as he did cheer them in their triumphs.
One day he was flying over the earth he did notice life that was not of his making. And this fascinate him endlessly. "Hark!" he said "and ho! This is some new thing." And it did delight him endlessly. He stood by the new life as it did grow and spread. It out fought his creations and did take their living space. Every new obstacle was met and overcome with some form of change. He tried every one of his curses, and still they overcame it.
Such as it was the many days and nights until the first Equidae did walk the earth.