Killed her 3 times with 3 people - Mana Enchanter, Druid, Mentalist.. She doesn't drop loot every time, but often. The green/grey add is pretty hard if you dont have any tanks. Needed Master of Concentration to kill all adds... If you pull her, just use the lvl 40 shield n have some mana potions rdy... u will need 'em... She is btw nearly resistant against any magic dmg -except the pet dmg shield. Made 16 Dmg with staff n 13 with Bomb :P...
I've killed her several times with 4 people and havent seen that sword drop there she does drop a very nice warden/druid blade and a Left handed peircer. also looks like she drops loot every other kill.