Jeanne d'Arc Alter, also known as the Avenger-class Servant in the Fate/Grand Order universe, is a darker and more vengeful incarnation of the historical Joan of Arc. Unlike her saintly counterpart, Jeanne Alter embodies rage and resentment, having been created from the grudges of those who wronged Jeanne d'Arc. She is a formidable anti-hero with a fiery personality and a penchant for destruction. In the series, Jeanne Alter plays the role of a major antagonist who challenges players with her powerful abilities and complex motivations, adding depth to the Fate/Grand Order storyline.