@ShinGetsu Well the actual real winner is Tokugawa Ieyasu.
Nobunaga laid much of the groundwork for Ieyasu and Hideyoshi. Compare his battles with Ieyasu's and Hideyoshi's and you will see Nobunaga defeating rival clans. By the time Nobunaga died, there was pretty much no doubt that the Oda...
@criver there is such a thing as body conditioning. Muay Thai practicioners for example fuck their shins so they are able to do their kicks without pain. It's a form of body remodeling. You get used to the pain while also making that part of the body stronger than usual.