I really can't deal with that, no matter what I do. The best thing I can do when he is making his headbutt is to use a light attack and hit him, which makes him fall back but he also stabs me. This counting that I have my hiperarmor active. If not I can't do anything fast enough, and guardbreak doesn't work either due to the stab afterwards. Other thing I also tried is to go for the hug, but the stab also makes me fall back if I have the hyper armor. If I dash backwards I still get hit by the headbutt since it follows me and as shugoki you can't roll that fast out of the danger.
If anyone has an advice I will test and feeback you. Thanks for reading.