Talk:Nightmare Rarity (story arc)/@comment-26973802-20131210061153/@comment-1031724-20150921001830

I think what happened was that, before he was banished, King Sombra magnified Luna's existing jealousy, not into a separate entity but corrupting her with it. Then the Mane 6 used the Elements of Harmony to return Luna to the way she was and remove all the bitterness from her, kinda like they did with Sunset Shimmer. And I don't think she would ever willingly become Nightmare Moon again - not only does she stop Sweetie Belle from undergoing a similar transformation, but she is extremely remorseful for it and did not forgive herself until 102 episodes later

I know Lauren Faust said "Luna was no longer present" before, but in the Elements of Harmony Guidebook she spoke of "Nightmare Moon's reformation"

Also, from what Meghan said, the comics are a parallel universe to the show, kinda like Mario & Luigi and Paper Mario are to the Super Mario universe (and those worlds are capable of crossing over as they will next year) so they're allowed to be inconsistent if they want to, especially the Nightmare Rarity comics which I consider to be a third parallel universe separate from even the other comics, as they have a different style.

It might be interesting if they bring back Luna's dark side manifested into a separate entity after being driven out of Luna and make her like a symbiote then (kinda like Ghost Kaiba from Yu-Gi-Oh, or even Lana from Hyrule Warriors as she is Cia's light side driven out)