Niten Ichii Ryuu

Based on purplewisp's JSON on the forums: http://smf.cataclysmdda.com/index.php?topic=8689.0

This currently is available at chargen (melee weapon training) or rarely from dojos; it lets users power-attack at mid-grade skill and work up to knockdowns and counter hits, topping out around skill 6.

Used with katanas, wakizashis, the standard quarterstaff, and the cudgel.  I'm pretty sure the bo (Japanese staff) was not ironshod, and the nodachi is a bit large for this sort of training: not an "inside" weapon.

Balance tweaks are welcome, and I'm prepared to add bokken/shinai, along with a mansion spawn group, if desired.
Possibly leave it in for now, but I'd like to consider breaking styles up by rarity a bit, there are quite a few of them that it doesn't make much sense for someone to start with,it leaves a goal for the player to achieve in game.