DOOM TOWER level 50
I have Demytha and UDK and Vergis standing with boss now. They never seem to get hurt but can never get his shield down. I started with Kael, Fell Hound, UDK, VERGIS and Demytha. His level goes down a little then goes right back up. What should I change in the team? Any help appreciated. We are on round 532 right now.