Twilight Sparkle

"I am her student and I will do my royal duty, but the fate of Equestria does not rest on me making friends."

- Twilight Sparkle

Twilight Sparkle is the main protagonist of My Little Pony Friendship is Magic. She is a pretty female unicorn pony who transforms into an Alicorn and becomes a princess in Magical Mystery Cure and a pony with a lavender body, purple eyes, and an indigo mane and tail with a pink and purple stripe running through each.

She is both the Princess of Friendship and the bearer of the Element of Magic. In the past, she was Princess Celestia's personal student. She lives in her own palace in Ponyville, with her baby dragon assistant Spike.

History
Twilight was born a unicorn, and was inspired from a young age to learn magic after witnessing Princess Celestia raise the sun at the Summer Sun Celebration. She took the entrance exam to enter Celestia's School for Gifted Unicorns, in which she had to magically hatch a dragon's egg. At first she was unable to do so, but a burst of energy from Rainbow Dash's sonic rainboom outside unleashed her magical potential, causing her to start firing off spells uncontrollably until Celestia was able to reach her and subdue her magic. As a result of this, Twilight gained her cutie mark, and Celestia took Twilight as her personal student.

As a young adult, Twilight faced Nightmare Moon, an evil alicorn who Celestia had banished to the moon one thousand years ago. To defeat her, Twilight rediscovered six ancient artifacts called the Elements of Harmony, and in doing so, discovered that she is the bearer of the Element of Magic. After Nightmare Moon's defeat, she stayed in Ponyville to be with her newfound friends, and to learn more about the magic of friendship.

Twilight ascended from unicorn to alicorn after managing to complete an ancient spell first created by the legendary unicorn wizard Star Swirl the Bearded, becoming a princess in the process. Along with the five other bearers of the Elements of Harmony, she eventually unleashed the Rainbow Power, which she used to defeat the evil centaur Tirek. In doing so, she gained a new crystal palace in Ponyville, and was officially given the title of Princess of Friendship.

Powers and Abilities
Child Prodigy: Twilight possessed a hidden magical potential as a filly, which eventually unleashed itself due to the energizing effect of a sonic rainboom.

Genius Intellect: Twilight is highly intelligent, able to retain a great deal of information and use it to her advantage.

Alicorn Physiology: Twilight is an unicorn pony who transforms into an Alicorn and becomes a princess, allowing her both to fly and cast magic, including new levels of power that ordinary unicorns could never possess. She may also be either immortal or have a greatly increased lifespan.

Magic: Twilight Sparkle is extremely adept at magic, as it's her special talent.
 * Spell Casting: Twilight can perform a large number of different magical spells. Twilight can perform other various spells and tricks, she is able to learn spells simply by watching others perform them.
 * Levitation: Twilight can self-levitate using her own telekinesis.
 * Gravity Alteration: Twilight can use a "gravity spell" to change the direction of a gravitational field within a certain area.
 * Magic Beam Emission: She can shoot concussive blasts from her horn.
 * Force-Field: Twilight can create a force-field to protect herself and/or others.
 * Teleportation: Twilight possesses the ability to teleport herself and others.
 * Telekinesis: Twilight's horn usually glows white or a faint shade of purple, and objects assume a glow of white, purple, or magenta; when she affects multiple objects at once, several other colors are used as well, allow her to manipulate them.
 * Thought Manipulation: Twilight Sparkle was able to use a spell to stop the Parasprites from eating food, as well as a spell to stop the Vampire Fruit Bats from sucking the juice from the apples.
 * Hair Grow: In the episode Boast Busters, it is revealed that Twilight is able to do a hair growth spell as she made spike grow a mustache.
 * Repairing:
 * Flight: Twilight can fly in the same manner as a Pegasus after she becomes an Alicorn.

Magic Embodiment: Twilight Sparkle possesses the element of magic.

Trivia

 * Twilight appears to be the most powerful My Little Pony character along with Princess Celestia, Princess Luna and Discord.
 * Twilight seems to have a crush on Flash Sentry, the guard in the crystal palace of her brother Shining Armor and Princess Cadance, her sister-in-law.
 * Twilight is leader of the Mane Six.
 * In the My Little Pony episode 'Winter Wrap Up' it's possible that she has Ophidiophobia, which is a fear of snakes.