Twilight Sparkle

Twilight Sparkle is a Alicorn (formerly Unicorn) that lives in the Golden Oak Library at Ponyville. Her number one assistant is Spike the dragon. She also have a pet, named Owlowicious that helps her at night.

She became an Alicorn by creating a new magic: the magic of friendship. Before, when Twilight lived at Canterlot, she was too busy to make friends. And she realised that with friends, she's never alone. After all the experience she did with her friends, she learned that friendship is magic.