What martial art teaches the use of Masamune?
Masamune Okazaki was a Japanese swordsmith known for his crafting of traditionally made tachi and tanto. He was one of the most famed swordsmiths in all of Japan, and the idea of “using a Masamune” is to mean using one of his swords. The answer to your question is none. No art teaches specifically the use of a Masamune, but rather the use of a katana, tachi, tanto, wakizashi, or kodachi as a single blade or accompanied by a second. Secondly – you’re talking about a Nodachi or Odachi – meaning loosely “great sword” so named for it’s length. The type of sword you’re discussing had one specific purpose in battle, which was to sweep the swordsman and his horse in a single blow, killing them both. So the answer truly is none, at this point. Sorry.
