Incapacitating WS

[Roaran]

I farm their horns every now and then. You have to incapacitate them with concusive blow from the front to hit their horns, you also have to make sure that the last hit is a concusive blow to their horns, which kills them and gives you a horn, I always get horns when doing it this way.

Doesn't matter if it's the last hit. Skull Sunder II works and I believe there is an archer skill as well.