Thank all 3 of you very much for the advise. I tried all 3 methods, and the one that worked the best for me was ZorroDragonslayer's method. I used my best fighter to knock him off of the center of the circle, took that position away with my best fighter, put my 2nd best fighter in the doorway, and kept my spell casters at range. That worked very well, and was actually quite easy. Thanks again, all of you.