About me: Ursula Callistis, born Chariot du Nord and also known by the stage name Shiny Chariot. She is the Magic Astrology teacher at Luna Nova Magical Academy and the mentor (and idol) of the young witch Atsuko Kagiri.
Ursula is an adult woman with back-length dark blue hair tied with what appears to be bandages just before the end, forming a small ponytail over her right shoulder. She has red eyes with white pupils and fair skin complexion. She wears the default uniform of Luna Nova's staff: a dark violet hooded dress reaching up to her knees with long wide sleeves, a red flame-like design in the bottom, a single brown strap on the chest area, and the dress' inside is colored a deep red; a black choker; a dark violet witch hat with a dark blue band decorated with a red feather and a golden crescent-shaped object; dark blue knee-high boots with a deep dip and red tips; and black-framed oval glasses which usually obscure her eyes due to reflecting light, making their resemblance to Chariot's less obvious. She does not actually need her glasses, as first shown in "Blue Moon". She is notably younger than the other teachers and this shows in her appearance.
Without her hat and hair-tie, her red hair falls in the same way as it did before she became a teacher, though it has grown longer. Without glasses, her eyes are unobscured. This "transformation" occurs when she is in or preparing for magical combat, and she also takes the skirt off of her uniform to make it easier for her to fight. With her uniform modified as such it resembles a black body suit with similar patterns to those on her skirt, and with her shoulders and cleavage visible.
After Akko and her friends destroy the Noir Rod missile and her identity has been revealed, Chariot continues her role as Luna Nova's astronomy teacher and Akko's mentor. She dresses in the same manner as she did as Ursula, including her glasses, but no longer magically disguises her natural red hair.
After this, Chariot left the stage and assumed another identity. She takes the name "Ursula Callistis" and becomes a professor at Luna Nova. She is calm and patient and quick to act in situations of danger, although she comes off as shy and timid when confronted by her superiors. Ursula is a very caring person, especially towards her students, taking time to help them in any way she can. She executes her teaching duties meekly and avoids confrontation with other teachers, but being Chariot, she hides a great charisma. She does not hesitate to use it to confront her superiors when they are unjust and to capture the attention of the public when there is a danger. Even as an adult, she still tends to be clumsy and somewhat "uncouth", which bothers the other teachers, especially Finnelan, who believes that Ursula is "too kind" to her students. The first clue to her true identity (besides her voice, eyes, and familiarity with the Shiny Rod) was her brief lapses of self-reflection whenever she is reminded of her life before becoming a teacher. While never quite losing the spark she had in the past, she has become somewhat cynical and her decade of being a humble teacher takes a toll on her. It is Akko who gives her new hope. Chariot's devotion to the young witch is the greatest illustration of her compassion and selflessness, and her guidance also reveals a great wisdom beyond the dreamy idealism of her youth.
Through her bonds with Akko and guiding her student and fan, Ursula finally saw what she was lacking in order to revive the Final Word. While hardwork and a passion for magic is necessary to revive world's magic, it won't be enough without firm self-worth and affirmed support from others. All this time, while acknowledging those who she considered better than her in many ways such as Croix and Akko, Ursula lost the sight of her own self-worth and believed that she can handle her quest for Grand Triskellion by herself which contributed to her eventual failure and downfall in the past. It took Akko's love and admiration to her former identity Shiny Chariot and their journey together that Ursula finally saw what she lacked, and thus was more than determined to become the hero her beloved student saw in her and to do what was right. Towards the end of the series, Ursula continued to be the teacher of Luna Nova where this time, she embraced her true self by no longer magically altering her hair.
She is a user of the Magic of Stars, a unique magic which has unknown yet powerful abilities. Although it is unknown if it is related to the former skill, Ursula is well-versed in magical astrology, which is used to see the future. By using her wand, Ursula can project powerful beams and explosions of destructive magical energy, create powerful energy barriers, large energy orbs suspended in the air and a large sword made of magical energy. She usually changed the form of her own body during her shows such as obtaining dazzling wings on her back or the half of a horse's body, apart of being able to reverse the effects of this magic as seen with Andrew Hanbridge. She is also able to repair a broken object in conjunction with a magic powder to improve its effectiveness, levitate objects or people and move them as she wishes, and knows several magic languages. Ursula is adept in communication with Spirits, is also shown to be able to transmit her voice over long distances with a magical megaphone and like other teachers, she can project images and scenes into thin air. In the past, she demonstrated great broom flying abilities, however, she lost her ability to fly when exposed to the Wagandea pollen. She is one of the few witches in the series shown to cast magic without a verbal spell.
In addition to magic, Ursula possesses an astonishing physical and acrobatic ability that is augmented by her magic. She can execute kicks that can break stones, knock over large statues and run on walls. She can also push back a monstrous version of the Noir Rod and survive falls from the midst of Wagandea albeit severely injured as a result. However, it is also implied that Ursula also had trained her body to peak level of human conditioning as over the course of her fight against Noir Rod's monster form, she was shown able to brush off otherwise crippling injuries, leaping to considerable height, and severely crippled the magitronic monster, all of which performed without magic.