Mysterious Heroine X (Alter)

Mysterious Heroine X (Alter), also known as Nazo no Hiroin X [Alter], is a Berserker-class Servant in the mobile game Fate/Grand Order. She hails from the distant Servant Universe, the last survivor of the dark knight order, the Dark Rounds, and proclaims herself “Sir Pendragon.” Burning her mana conversion reactor, the “Altereactor,” she vows to defeat Mysterious Heroine X, serving as the “Anti-Anti-Saber Decisive Weapon.” Despite her youthful appearance, she is an intellectual, bookish Berserker with a sweet tooth. Her weapon is the “Evil Sacred Sword Necrocalibur,” which can freely transform but often breaks and explodes. Despite being a Berserker, she retains a relatively clear mind. She also has a special skill to convert calories and sugar into magical energy. Her goal is to defeat Mysterious Heroine X and paint the universe in the darkness of villains. She is accompanied by a mini black knight robot named “K6-X4.”