Complex sentence: In this version, he is a mutant, with no explicit connection to Charles Xavier, his mutation granting him the inability to be halted once he starts running, and superhuman strength sufficient to fight Wolverine to a standstill.
Split into simpler sentences: In this version, he is a mutant with no explicit connection to Charles Xavier. His mutation granted him the inability to be halted once he starts running, and superhuman strength sufficient to fight Wolverine to a standstill.