This is an idea that wouldn't leave my head, inspired by Fairy Slayer's "Mommy Nearest," Aldea Donder's "Alicorn," SoundofRainfall's "Play" and RainbowDoubleDash's "Lunaverse"

Alternate Universe: Instead of Twilight Sparkle, Princess Celestia made Rainbow Dash her personal student instead! Follow her through the events of the 1,000th Summer Sun Celebration. A reimagining of "Friendship is Magic"

An alternate universe story, in which Twilight Sparkle was born a pegasus, not a unicorn. Because of this, she isn't Princess Celestia's personal student at the School for Gifted Unicorns, and she can't wield the Element of Magic. Can she still help save the world from Nightmare Moon? Or will she fall under the dark powers of nightmares?

This was somewhat inspired by Rainbooms and Royalty, a story in which Princess Celestia picks Rainbow Dash to be her personal student.

Princess Celestia always knew that Twilight Sparkle was destined for great things, but she never revealed the source of that knowledge, not even to those closest to her. When the day of Twilight's true destiny finally arrives, can Celestia fulfill an ancient promise to save Equestia's past, present, and future, even it means saying goodbye to Twilight forever? How can Celestia refuse her mother's last wish?

Art by the inimitable Harwick