Make Yuna cast Shell (Not protect) on everyone before Mortiorchis does Total Annihilation. Then make the other characters defend themselves (Triangle) I made sure that Auron and Kimahri were the ones I cast shell on because they had the highest HP. Make sure everyone has a go and uses their overdrive. Make sure that all of the Aeons have full overdrives too. After everyone has done their overdrive and all the Aeons have too, he should die.
Reply With Quote