leviathan was hard but I was lucky but shell does make the damage go lower(and coral ring but I never used it). If i can remember right I had one sorcerer, one white mage, one black mage, and one time mage. I used haste on the white mage so for speedy recovery from it and I used shell on everybody then used haste on everyone and then infused flare with my enchanters and attacked him.oh and u need to master ninja to get the two swords ability so u can have two enchanters equipped) if what I told u dosen't work than I surely must not remember what i did to defeat him.