Riposte with mastery costs 23 fatigue and has no penealty for hitchance. It’s not bad, but enemy AI tends to avoid hitting targets with riposte – they choose other targets, wait or use shieldbash and shieldwall. It means Riposte builds up fatigue very fast for nothing (unless it’s a nachzehrer of direwolf fight) and works more like shieldwall.
1. Riposte with mastery lasts for 2 turns if not moving.
2. Riposte skill costs 10 fatigue, but every counter-blow builds up standart slash fatigue. If fatigue is full riposte skill gets disabled. Any movement disables Riposte as well.