Xenolith

Xenolith is eccentric and relaxed despite possessing extraordinary power. He can shift rapidly between humorous behavior and the seriousness expected of a martial arts master.

His approach to gravity emphasizes emotional and conceptual understanding rather than raw strength. He teaches that gravity is the weight of the heart and pushes students to understand the principle behind their Ether rather than merely collecting stronger techniques.

Xenolith also possesses enough humility to acknowledge the accomplishments of students who eventually surpass him.

Satan Gravity allows Xenolith to manipulate gravity at an extraordinary level. As the founder of the Magimech Arts, his understanding extends beyond changing physical direction or weight.

He can apply gravity conceptually, such as making another person's pain "lighter" or drawing thoughts and memories toward himself. On Foresta, he demonstrates enough power to affect the entire planet and immobilize people across an enormous area.

His Magimech techniques provide the foundation for the fighting style later used by Ziggy and Shiki.

Xenolith is first mentioned during the Foresta conflict and subsequently reveals himself to Shiki as the founder of the Magimech Arts.

He becomes a teacher to Shiki and the other Ether Gear users aboard the Edens Zero, providing training intended to improve their control and prepare them for stronger opponents.

Xenolith reveals that he was originally human and transferred his mind into a mechanical body long after the era of the Heavenly Knights. In Universe 0, Müller steals his gravity abilities, forcing Xenolith to survive through another machine body while the crew confronts the impostor threat.

Ziggy is Xenolith's former student and eventually becomes a gravity user whose strength exceeds his teacher's.

Shiki Granbell becomes Xenolith's later student, receiving instruction in deeper applications of Satan Gravity.

Rebecca Bluegarden, Weisz Steiner and Homura Kougetsu also participate in Xenolith's Ether Gear training.

Müller steals Xenolith's gravity power in Universe 0 and uses it as part of his own transformation.