Performing specific overcome actions consumes stamina, which recovers in a short amount of time; once fatigued of stamina, the Hunter results in being susceptible since they pause to capture their breath. Monsters and various environmental dangers may also inflict blights along with other negative status outcomes that impair battle skills. https://monsterhunterstories1218371.scrappingwiki.com/1429910/detailed_notes_on_monster_hunter_english