Luna's return from the moon was anything but easy. Severe memory loss meant that she knew nothing of her rebellion and subsequent banishment. Forcing her to rely on Celestia's story. But the Lunar princess is slowly regaining her memory. And with it comes revelation. The true reason for the rebellion, the lies told by her sister. Her daughter.

The history of Equestria is full of evil that sought to undo all of that which the Royal Princesses had fought to create. But none so powerful as the father of all ponies. Creator and God of Gods, his reign was ended by his own two daughters. But he is back. And more powerful than ever. Even capable of removing an Alicorns power. Who is to stop him now ?
EDIT : Season 1 & 2 cannon. Does not include facts, characters, or other information from season 3 onward.