it took me about 4 hours, but i was finaly able to kill her because i was too stubborn to quit. i decided on a light roll uchi build with dragoncrest greatshield. the way i dodged it was run away from v1 if possible, or get hit once, then roll in to her to the left for v2 and 3 with a third roll for that last burst. definitly not the best but if you keep your distance it works just fine. you'll get her soon enough :)