Do not free that demon.

From all the ponies Sunny could possible revive to show that non-earth ponies are good too she chooses the one that is NOT good at all.

What’s the worst that could happen?

Daddy, is it true this world used to be inhabited by ponies?
Yes, dear. But they destroyed themselves in a civil war caused by someone called Crazy Glower.
That’s scary, daddy. I’m glad we are all friends.
Goodnight my little fla’argh’whumph

Welp time for redemption arc of Cozy

Oh Noooooooo…

Wah wah! X3

“They only wanted to murder us and rule with an iron hoof!”

Golly.