祖之太刀・ä¸å‹• Instead of numbers, they went a different route of naming this (Enpi is 1, Hobaku is 2, etc. and kaiten is 0). The first kanji (祖, so) means "parent" or "ancester". Fudo (ä¸å‹•) means "steadfast, immobile, firm". So this could be transliterated to something like "Ancestral style of the tachi - Steadfastness". Though I think it's more of a nod to "Fudo myo-oh", which is the Japanese name for Acala, one of the five wisdom kings in Vajrayana Buddhism. He is the destroyer of illusions and the protector of attaining one's goals.
No he wouldn't he would be like "Wtf is this big purple piece of crap in my hand? why is my sword not over 9000 feet long? and where is that *** Aerith so I can stick my sword in her again..."