Talk:Princess Luna/@comment-4756953-20141101072338/@comment-26973802-20141102064352

I think they should show a flashback episode showing their fight with Sombra in more detail, because I still think Sombra was the one who magnified her jealousy into Nightmare Moon. (there was theories before that it was Tirek but now that we've seen him he doesn't have that kind of power. Sombra could though, I think he sensed Luna's jealousy and cast a curse to magnify it before he was banished. His curses are confirmed to survive his banishment, after all. And once it got to the point where Luna decided to overthrow Celestia, that's when it fully manifested into Nightmare Moon.

We do know she has to appear in at least two episodes: One for her nightmare, and one to appear in Apple Bloom's dreams. (Scootaloo was Season 3 and Sweetie Belle was Season 4)