Discord has been trapped in stone along with all the chaos he tried to spread across Equestria. The only remaining free spark of his power resides in his heir. Screwball spent countless years evading the ever watchful eyes of the realm but grew bored of hiding her true self.
Boredom turned into spite.
Spite turned into a plan.
Then she got hungry, had a sandwich, and then she got to work.

A short belated birthday gift for my dear friend, Fluttercord45