3. I THOUGHT OF SOMETHING!
NSS K is amazing! it makes most moves safe when they go into NSS like 3(B) or WR (B). it knocks back on regular hit and it combos into 2a+b on counter. and because it's a high, it could make people duck, so decent mix up with NSS (A)\A+B.
but NSS K is -16 on block. T_T
I use a lot of frame traps with Nighty so you could look at his frame data to see what it +anything on guard. good set ups for his CE too.