I've heard about him... but dunno his participation in X-Men really...
Here:
Exodus
Real Name: Bennet du Paris
Occupation: Former leader of the Acolytes
Identity: Secret
Legal Status: Unknown
Former Aliases: None known
Place of Birth: Unrevealed
Marital Status: single
Known Relatives: None
Group Affiliation: (former) Acolytes
Base Of Operations: : (current) Mobile, (former) Avalon Space Station.
First Appearance: X-Force #25
History: Little is known about the early life of Bennet du Paris other than the fact that he was alive in the 12th Century and had encountered the Avenger known as the Black Knight, who inhabited the body of his ancestor Eobard Garrington during that period. How Bennet survived into the 20th Century, through immortality or suspended animation, has not been revealed.
Bennet was found by Magneto in the 20th Century and was brought to Magneto's base on Avalon. As his lieutenant in the Acolytes he replaced Fabian Cortez, who had betrayed Magneto. Exodus encountered numerous mutants and attempted to recruit them as Acolytes for Avalon, with some margin of success.
When Charles Xavier wiped Magneto's mind clean in an attack by the X-Men on Avalon, Exodus took command of the Acolytes. Soon afterward Fabian Cortez resurfaced in Genosha, where he had taken Magneto's granddaughter Luna hostage. Exodus encountered and defeated Cortez in the sewers underneath Hammer Bay, the capital city of Genosha.
After the Genosha affair, the Acolytes found and retrieved a cocoon made of ice from orbit around Earth. The cocoon was found to contain the mutant Holocaust, who had traveled to this reality from an alternate timeline. Exodus and Holocaust battled, resulting in the destruction of Avalon and the scattering of the remaining Acolytes.
Exodus soon reappeared to track down both Cable and the mutant known as X-Man, who also hailed from the alternate timeline that Holocaust traveled from. Cable and X-Man seemingly defeated Exodus and threw him into a rapidly closing crevasse. Whether Exodus is truly dead remains to be seen.
Height: 6 Feet
Weight: 195 lbs
Eyes: Blue
Hair: Black
Strength Level: Exodus possesses the normal human strength of a man his age, height, and build who engages in intensive regular exercise.
Known Superhuman Powers: Exodus is a mutant who possesses vast psionic powers. As of now he has shown the ability to telekinetically lift at least 10 tons of weight, incredible telepathic powers, and the ability to project damaging psionic blasts.
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