u/Full_Implement_8367

I've recently tried picking up Highlander but I've noticed that his heavy attack/parry inputs are messed up. Heavies are supposed to be guaranteed on GB or light parry, but most of the time when I try to punish, the opponent just blocks it, and I often end up missing the parry windows on dodge attacks when I'm using HL specifically. Why does this keep happening? Does he keep trying to go into offensive stance? Do I have to tap the heavy button so he doesn't delay it?