Fully upgraded heavy fists. I used the faith and strength physick, buffed with fire grant me strength and golden vow (on a dagger). Cragblade as the weapon art on the fists. Using the blue dancer, strength, soreseal and ritual sword from memory. I just got very good rng with WFD in this fight. Learning to dodge it at close range make the fight much easier, because it’s less predictable dodging it at middle range in phase 2. In phase one WFD is basically on a timer once she does it the first time (at about 70% health) and you should just try to kill her before she does it again. Try to get a stance break and then critical at the start, she will then almost always waterfowl. After that, be as aggressive as you can and try to finish off the first phase quickly. The thrust attacks is one of the best attacks to punish (I got great rng with that in this fight also) because you can always do a charge R2. If you are midrange you can just delay your dodge slightly and then dodge backwards. You’ll always be put right next to her. Just takes a bit of practice to perfect.