My Little Pony: Friendship Is Magic Season 3 Episode 13 Magical Mystery Cure Episode Title:Magical Mystery Cure.Episode Description:Princess Celestia gives Twilight the notebook of Star Swirl the Bearded, which contains an unfinished spell that she thinks Twilight can complete. When Twilight recites the spell, it causes her friends—through the Elements of Harmony—to have their cutie marks and respective destinies switched, resulting in disasters around Ponyville. Twilight finds a means to convince each of her friends of their proper place with the aid of the elements, restoring her friends to normal, and is able to complete Star Swirl's spell by accounting for her friendships. When she does so, Twilight is teleported by the Elements to an ethereal place, where Princess Celestia congratulates her on completing her journey, and helps her transform into an alicorn and crowns her as a new princess. Twilight's ascension is celebrated by her friends and across Equestria.