Beating Sephiroth
The main things to have in this battle are:
Oblivion or Ultima Keyblades
As many Elixers as you can hold
Lvl 85+(100 is recommended)
Guard
Dodge roll
Ars Arcanum
Ragnarok
First of all, simply avoid his first attacks and counter them withh combos. Soon after he will make pillars of fire come up. To avoid this, simply listen to see if he says something similar sounding to "Alchemy" and get out of the way. His most deadly attack is Sin Harvest which drains you MP and lowers your health to 1 HP. When you here him say Sin Harvest, find him and attack before he finishes. If you fail or you know you are to far to reach him in time, Just have a Elixer out and use it as soon as nescacary. He will do this more than once so be prepared. He repeats all of these attacks until you do some serious damage to him. Then he says something while glowing and summons meteors to float around the arena. Dodge roll past them and try to get to Sephiroth in time. After this he will use an attack called Silver Wind where he sprints and is trailed by energy balls. These will close in on you so prepare to jump. When you can, attack Sephiroth until the battle ends and you get nothing but a cut sceen but it is all woth it to beat him. (In final mix you get One Winged Angel Keyblade for beating him)
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