Dark Falz

[Sephiroth Now]

Ok, as soon as the battle with the third form begins, he will hit you with melee, extremely hard. He will then float about hitting random melee attacks. Switching between vulnerability from melee, and a form invincible to all but techs. He will then float upwards and he is invincible from all up there, and he will fire these blue balls, these hit hard, so run fast in a straight line perpendicular to their path. After you dodge them, he will use Grants, you can try resta dodge, but if it hits you it helps to have some light resistance. He will come back down and follow this same pattern for ahwile, then after a certain point, that dude will steal your soul, so when you hit him, you hit yourself. He will then go up again and fire the blue balls, and then megid, easily dodged and low level. This pattern continues until he is dead.
I suggest you equip a gun of some sort regardless of class, and some resist lights of some sort. Make sure to have foie set on the shortcuts, along with resta, trimate, and trifluid. Also, bring ten of each class of fluid and mate, you want to maximize healing items in order to survive. If you are an android, you are pretty much screwed because that reduces your attack time by half. I always take an offensive approach to falz, but if you prefer something else, go for it. I am SURE plenty of people will post counter-opinions.