Magic is fickle thing. Give power to those who do not know how to use it and nations will bow before them. Give it to someone unafraid to use it to its full potential, and they will label him a monster; evil and insane... Yet both are equally guilty
What happened to those loyal to Discord after his downfall? Where did they go? How did they survive? What sort of revenge have they designed for the ones who cast them down? Very soon Equestria will know, as something wicked this way comes...