i took him around this time through and i actually found him to be a half decent NPC. I had him dual wielding Celestial Fury along with that Katana that adds to your spells. His stoneskin + offensive spin was very effective. I played on insane difficulty so most of my fighters got spanked real fast. (1 or 2 hits and they died) He was way more reliable than Korgan in the front due to his high number of stoneskins, 6th level spells, and his harp confusion. The dude could even come up with a -15 ac with his defensive spin. I dont even think the kensai mages can come close to that. lvl 23 blades rule
dont give him other weapons....he as 2 great swords (keep celstial for the others). Entropy and chaos blade (verylow speedfactors) are great weopons that can make hear'blabla a force to be reconned with