first before you go to battle add cura barrier regen drain and blizzard blade make sure to have alot of ethers so you can recharge on your mp also add the power wrist and the iron bangle to your items. alright so go and go through the talks. after he transformed use barrier and regen automatically and then switch to blizzard blade. make sure to have cura next to blizzard blade and the items pocket. go behind him and attack from behind. watch out he farts lightning. lolz anyways attack from behind. make sure to have a full life at all times. his final attack unleashed wrath can do about 1857 to 2278 damages. but if you put barrier and iron bangle should lessen the damage. after that if your lucky you will get genisis in modulating phase. other then that everyone else has got to survive two more unleshed wrath. but if you keep using barrier and regen and cura over and over. until you beat him. you should be fine. in the end of the battle you get angeals blade. hope this helps you out. :)