Here’s some tips for if you ever fight her again. 1. If you’re using dragon spells, make sure to have a lot of mind. 2. If you’re using a shield, make sure you meet the requirements. 3. For Waterfowl Dance, run away until she starts coming towards you, then keep rolling towards her. Another thing you can do is throw an ice pot which will knock her out of it. 4. If you’re trying to get stance breaks (which I think is what you were doing) use a weapon with higher crit damage or damage overall.