I fought her and it was a heck of a battle. (Mind you I play on Insane with Ascension,Tactics,yada,yada,yada mods)
I liked it very much. Well kind of. Before I won I spent a lot of time studying all the tactics and strategy. Then I remembered on a little thing called

etect Illusion. It ignores Spell Immunity

ivination so her images just went from crazy spellcasters to nothingness. [img]tongue.gif[/img]
But damn I hate,hate,hate that battle. Good thing that I don˙t play BG anymore for some time now.