I have been adventuring for a while with a party in the mid level 60s and find myself ready to either continue grinding levels or fight Cyclanos.

Only problem is that he beats the crap out of my party. My party is my old Wizardry favorite of 3 fighters, bishop, cleric, and thief. By now I would have changed classes for a few of them but I like what some of the innocent equipment has to offer and don't want to give that up yet.

That being said, any tips on how to survive the wraith of Cyclanos? Besides at least one party member getting massively damaged each round, my party gets petrified pretty quickly. Do I just need to level up some more?