I finally watched a episode of this and all I have to say is Epic Episode
So Twilight Sparkle is probably the most powerful Unicorn in Equestria, rivaled only by the royal princess and their godlike powers.
She also has a thing for astronomy.
Think Princess Celestia was grooming a replacement for Luna? Or just someone who could use the Elements of Harmony?
Man, Stone Twilight was legitimately scary. I was so disturbed by the shot with the snail crawling over her.