Trixie Lulamoon

Trixie is a unicorn pony and a traveling magician who is featured as the main antagonist of Boast Busters and Magic Duel and makes background appearances in Bridle Gossip and The Return of Harmony Part 1. She tends to speak in the third person and refers to herself as "The Great and Powerful Trixie." Trixie visits Ponyville with her one-mare show, in which she shows off, extremely exaggerates, and boasts about her abilities. The name Trixie is a diminutive form of Beatrix.

Trivia

 * Trixie will become Winnie the Pooh's enemy, but later turns good, in Pooh's Adventures of My Little Pony Friendship is Magic.
 * Trixie is also Diesel's girlfriend.
 * Trixie will guest star in Thomas and Twilight Sparkle find Atlantis The Lost Empire.