"She did, but it took the Elements of Harmony to cleanse her of her corrupted power before she could know this." He grinned a little. "My sister was responsible for this."

He nodded. "Kind of, if the vines were thorns and they grew out of control all the way into Ponyville. Discord however is a God of Chaos, a spirit that embodies the power of chaotic actions. He was reformed by Fluttershy and has become one of our staunchest allies since then."

"Yeah, human versions like that. There's a magic mirror that connects a parallel universe that ponies, animals and other races we know are humans. Everyone who goes through this mirror turn into humans, and humans who go through it turn into ponies or any equivalent race."