Twilight Sparkle

Twilight Sparkle is the first central main character of the My Little Pony Set. She is a female unicorn pony who eventually transforms into an Alicorn and becomes a princess. She is also the daughter of Twilight Velvet and Night Light, the younger sister of Shining Armor, sister-in-law to Princess Cadance, paternal aunt of Flurry Heart, wife to Flash Sentry, and mother of Velvegaic Sentry, Galaxy Swirls, and one boy.

At the beginning of the first season of the set, she and Spike, her best friend and assistant, move from Canterlot to Golden Oak Library in Ponyville to study the magic of friendship, and in the second part of the Season 4 finale, she gains her own castle—the Castle of Friendship—and gains the title "Princess of Friendship". Twilight Sparkle represents the Element of Magic and is the Nymph of Friendship.

Before becoming a princess, she regularly sends friendship reports to Princess Celestia. At that time, Twilight adopted a pet owl named Owlowiscious. As of the season 9 finale, she is the ruler of Equestria.

Personality
Twilight is first introduced in the series as being asocial. She politely refuses an invitation to Moon Dancer's get-together and later states that she and Spike "don't have time for that sort of thing." When Celestia tells her to oversee the arrangements of the Summer Sun Celebration in Ponyville and to try and make friends, Twilight is indifferent to the latter request. Over the course of the series premiere, however, Twilight comes to accept her new friendships and expresses a desire to stay with her new friends in Ponyville.

In Amending Fences, Twilight returns to Canterlot in an attempt to apologize to her former friends for her past actions. She succeeds with Twinkleshine, Lemon Hearts, and Minuette, but Moon Dancer coldly rebuffs the four mares. Minuette and Twilight liken Moon Dancer's behavior to the way Twilight used to act.

According to Asumi, Twilight is more interested in books than friends. Even after Twilight becomes good friends with the rest of the main characters, she continues to read and consult books. For example, she confidently joins a marathon after reading several books about running in Fall Weather Friends. She is also very knowledgeable about Equestria's history, as seen in such episodes as Luna Eclipsed and Testing Testing 1, 2, 3. She almost passes out when she finds out that the Canterlot Library has a restricted section in Origins Generations Equestria Girls: Forgotten Friendship.

Twilight tries to be rational in unfamiliar situations. During the investigation in MMMystery on the Friendship Express, Twilight tells Pinkie Pie to stop making wild accusations, and they work together to find clues and solve the mystery.

However, Twilight can lose her cool under stress. In Swarm of the Century, she hysterically suggests building a replica of Ponyville in less than a minute before Princess Celestia can see the damage done by the parasprite infestation. In Lesson Zero, Twilight goes crazy in her attempt to write to Celestia about a friendship problem, to the point of deciding to create a problem herself. In The Crystal Empire - Part 1, she shows a desperate desire to pass a test that Celestia gives her. In The Summer Sun Setback, she puts her whole craziness aside in order to make preparations for the final Summer Sun Celebration and her future role as ruler of Equestria.

Twilight tends to be skeptical of unproven claims, such as her friends' belief that Zecora is an evil enchantress in Bridle Gossip, and Pinkie's "Pinkie Sense" in Feeling Pinkie Keen.

In Party Pooped, Twilight displays an irrational fear of quesadillas. In the short Starlight the Hypnotist, Twilight also displays coccinellidaephobia, an equally irrational fear of ladybugs, stemming from her youth.

In Origins Generations the Movie: Mission Beyond Equestria, Twilight rationalizes that outside of Equestria, not every problem can be solved with friendship, especially since a con artist cat almost sells them and they are almost ratted out by a band of parrot pirates. In the underwater kingdom of Seaquestria, she has Pinkie and the rest of her friends act friendly toward the friendless Princess Skystar to serve as a distraction while she attempts to steal the transformation pearl. It is this act that ends up costing the Mane Six's friendship and getting Twilight captured by Tempest Shadow.

Pre-Series
According to Techno, Princess Twilight Sparkle's ancestor used to be the partner of the rumored three protectors with the Legendary Fairy form, Arcanix, who used to live in Equestria back when it was just a normal city and Ponyville was a small town. However, one of them left the group and turned evil. For the moment, undefeatable nightmares appeared all over the Multiverse. The other two protectors sacrificed themselves for the hope consisting of 6 girls who will gain this mysterious power and fight against the nightmares. After the victory over the nightmares and dreams, the 6 girls visited the fallen protector in her nightmare castle, but they accidentally broke the Nightmare seal inside of Vera without thinking of consequences. The queen of nightmare castle tricked the girls and she takes them to the mirror, and invaded Yumesora to fight against Cosmica while Miinya, Notia, Techno and the Dream Protectors Sound, Notes, Pero III, Spica, Meelo, Forte and Otama tried to fight against Vera and rescue the fairies out of the mirror, but they got captured by nightmares created by the queen. Since then, the myth of Arcanix fell into oblivion, much to the distraught of Twilight's ancestor herself, and called the heroes to save them. In "The Ending of the End?! MLP Style Part 1!", it is revealed that she is actually the previous identity of Twilight herself.

When she was a filly, Twilight studied magic on her own and wanted to attend Princess Celestia's School for Gifted Unicorns. At the entrance exam, she was told to use magic to hatch Spike's egg, but she was unable to cast a spell. A moment after she gave up, Rainbow Dash's sonic rainboom startled her and caused her magic to go out of control. Princess Celestia witnessed Twilight's magical abilities and made Twilight her personal protégé.

My Little Pony Set
Twilight Sparkle lives in Canterlot until Princess Celestia sends her to Ponyville. Accompanied by Spike, Twilight checks the town's preparations for the Summer Sun Celebration and meets the rest of the main characters. The celebration is interrupted when Nightmare Moon, Celestia's nemesis, returns to power and threatens to bring eternal night to Equestria. Twilight and the rest of the Mane Six discover the Elements of Harmony and use them to transform Nightmare Moon back into Princess Luna. Princess Celestia gives Twilight permission to remain in Ponyville to study the magic of friendship.

Throughout the first 9 seasons of the set, Twilight learns about the trials and rewards of friendship, periodically sending friendship reports to Princess Celestia. On rare occasions, Twilight and her friends work together to defeat powerful villains such as Discord, Queen Chrysalis, King Sombra, and Lord Tirek.

In Magical Mystery Cure, Twilight completes an ancient unfinished magic spell with her deep understanding of friendship. Princess Celestia tells Twilight that she is ready for the next stage of her life, and Twilight transforms into an Alicorn and gains the title of princess.

Princess Twilight Sparkle becomes the "Princess of Friendship" in the season four episode Twilight's Kingdom - Part 2. In the season nine episode The Last Problem, she is crowned the new ruler of Equestria, taking Celestia and Luna's place when they retire.

Magical Abilities
Details to come...

Uses of Magic
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