Dodge it. It's a physical attack so get 30% physical evasion from gear and use dodge. If you are doing the rape version of the fight she uses it on the first turn + every 5 turns after. If you aren't, she only uses it after charging. If you happen to be doing the fight on the way to G/F end, then she uses on the first turn + every 8th turn after.
You can also just one shot her probably by using the vorpal sword which does 5x damage to her. Must be vorpal sword (+10 vorpal blade) or the heroic version, vorpal blade 0-9 don't work.
You can also just one shot her probably by using the vorpal sword which does 5x damage to her. Must be vorpal sword (+10 vorpal blade) or the heroic version, vorpal blade 0-9 don't work.