Sephiroth

Once a celebrated war hero and elite SOLDIER operative, this legendary swordsman descended into madness after discovering his origins as an experiment involving Jenova cells. Driven by the belief that this alien entity is his mother, the sadistic former genius now seeks to destroy the planet he once protected. As the primary antagonist to Cloud Strife, he thrives on tormenting his "puppet" and possesses an indomitable will that allows him to defy death and remain a persistent, looming threat.