Talk:For Whom the Sweetie Belle Toils/@comment-1439415-20140324094113/@comment-26973802-20140324164502

That would be interesting to see. And I think Luna's jealousy had some help manifesting into Nightmare Moon. In my headcanon King Sombra could sense her resentment and cast a curse to magnify it before she and Celestia banished him. Which would have taken quite a while to get strong enough that Luna would try to overthrow Celestia. They should show flashbacks of her being outshined before Sombra, feeling rejected and kinda annoyed but not yet willing to go as far as to move against Celestia, and maybe one after Sombra so we see her quietly plot her revenge as her jealousy grows.