The wet nurse has several attacks. One is a giant swipe from its left to right, which launches you in the air. Another one is a swoops in on you from the sword rising upward with all arms at you, and a vertical attack where it strikes down. It will try to vanish; just turn the camera quickly so that you spot it in time, and attacking, but keep wtahc for those moves when the the he starts moving Another attack to REALLY watch out for is when it casts a cloudy mist closing off your vision, and disappears. Further along the line it will appear and attack you and it will clone itself , so you'll have to dodge two of them doing the same thing, but they do it consecutively. Dodge this in time and keep up your moves and you should be good.