Sephiroth

Sephiroth. Mere words cannot describe him. Originally the greatest member SOLDIER ever had, and Clouds idol, Sephiroth brandished incredible strength. His weapon is the masamune, a long katana that only he can wield. Sephiroth is only in your party once, during one of Cloud's flashbacks, but it is enough to prove his god-like strength... and insanity.

Back when Cloud was a member of Soldier, he and Sephiroth were on a routine mission to Cloud's hometown of Nibelheim. They were to fix a problem at the Mako reactor up in the Nibel mountains. In the back of Nibelheim, however, stood a forboding mansion. Tifa, Cloud's childhood friend, was selected to be their guide to the reactor. Once they reached it, Tifa and two other guards were left outside, and Sephiroth and Cloud entered. Upon entering, they made a horrifying discovery... dozens of pods, each containing a human-like creature within. Written across the ceiling were the words: JENOVA. Sephiroth was stunned... all his life he had known Jenova to be his mother. It dawned on him that he, too may be genetically engineered, like the creatures they saw in the pods. Sephiroth left the reactor, and holed himself up in the Mansion. There he discovered a secret passage, where there lay all the information on himself, and Jenova. The knowledge drove him mad, and he ran to the reactor. Cloud confronted Sephiroth in the Reactor, but cannot remember what happend. The last thing Cloud remembers is seeing Nibelheim burning to the ground, with Sephiroth slowly walking through the flames. And you thought Shinra would be the biggest of your worries.