Sprout knows that if ponies are afraid of something, the world is a better place. And if he's going to be restored to power, they need to be scared by something new. Hey, didn't Sunny's dumb father say something about an 'Ursa'...?

Sunny's good at having BIG ideas. And when it comes to the one which says 'We should have a school for magic' (which also helps her 'part-time alicorn' issues)? Somepony needs to stop her. Quickly.