Bazett Fraga McRemitz is a mage sent from the Mage's Association to fight the 5th War of the Holy Grail.
Bazett is a fairly serious, kind, and hardworking individual, who possesses a strong sense of justice. She can be short-tempered, yet still calculating. While she presents herself as a strong-willed and mature woman, in truth she is actually rather lonely. She is 23 years old.
She is the Master of the Servant Avenger and also Lancer's true master.
During her missions, Bazett met Kotomine Kirei, a member of the Church. As she told him her story, she quickly came to trust him and was very happy when he invited her to become a Master in the 5th Holy Grail War. However, after she summoned the Servant, Lancer and prepared to join the War, she was betrayed by Kotomine, who stole Lancer's command spell and chopped off her left arm. Having only lived to fight for four days in the Grail War, Bazett was left to die...
During the events of Fate/hollow ataraxia, Bazett comes back to life with the help of Avenger, resulting in an infinite time loop...
Her role in 'Fate/kaleid liner PRISMA☆ILLYA'
Bazett Fraga McRemitz is a First-Rank Combat Specialist: Sealing Designation Enforcer from the Church. The mission to collect the Class Cards was originally given to her and had easily defeated Lancer and Archer before she was relieved of the mission by Zelretch. She arrives in Japan shortly after the incident with Kuro is resolved.