One thing I would like to point out is that Celestia was only able to banish Luna thanks to the Elements of Harmony, everyone fears Celestia’s power when in fact it was not even hers that did it! Just some food for thought :3

({the elements enhanced her magic, she couldn’t banish nightmare because the first time she was too strong to banish with normal magic})

The Earth is Equestria’s moon.

That is now my religion.

And don’t you dare use your fancy logics on me.