ok tried going back to tower and back ...still same outcome....any other suggestions....this one knight has all this fire power...ridiculous!!...definitely a bug...but out of at least 25 hours of gameplay this is the first "bug" i have run into...i must say this is a very enjoyable game
I think you may be going about it wrong. I think mages are going to have a problem with that fight. My suggestion is go back and relearn your skills at the battle tower and put one point into the rush attack. Then use that on him and stay close to try and get him to switch to a sword. If that doesn't work, I suggest you catch him in a firewall and try to get the firewall so the wall is actually on him. This seems to be almost a 1 hit kill on anything.
then again, maybe it is a bug, he really shouldn't be able to one shot a level 30 with 600 hp