Sooo, can you give us any hints? I'm fighting her on Insane.
And she wouldn't die to Time Stop + hack&slash!
She's obviously waiting for her "death" speech or something.
The "flaw" might be that she doesn't dispel or remove magic. But those drow wizards with Comets are really hurting. Especially with the modified Comet spell.
Does Stoneskin or Ironskin protect from crushing damage?