Thread:Zergrinch/@comment-24801547-20140421052243/@comment-24801547-20140428135840

yep but in the game  the masamune is created by unknown resources and sepiroth is jenova son and had black wing and his vein got mako and have materia so that is why his  sword is powerful i have a theory that sepiroth can have his sword powerful like he is because it was created by unknown resources or his power can have his sword more powerful