When in a battle you have to relly on your endurance, if you don't have endurance you won't last long. When a battle begins your health is your endurance twenty times (so if you have 200 endurance it will go up to 4000), when your attacking some one with martial arts, your martial arts is the damage done to your oponents endurance. When your attacking with a sword, the damage you do is your swordsmanship (when it is a sword hitting another sword, if your a expert swordsman the swords attack comes out of the oponents sword endurance).