Langenschwert
Master Black Belt
I hadn't seen this before. But I have always been interested in what old swordsmen did with the inevitable nicks as shown at the end of the video?
Also, swords are perishable. There cones a time when you just throw it out. If the sword functioned well enough to save your life, then it served its purpose. If it's still in great condition, bonus. If after the fight it's no longer serviceable, that's ok. Go get another. It's better than dying.