|They call me hadouken, because I|
wobble from downwards all the way
So, in Martial Arts you have a bit of a section, starting p.89 that describes how to make new techniques from scratch. First off, a technique that lowers the enemy's active defense by 1 (-2), described on p.91. Let's combine it with the option for lowered maximum reach to go from a reach of 2 to 1 (+1), and the extra movement option on p.90 (-2). Finally, this attack will incorporate a Targeted attack (p.68) of a swing against a neck (-5). Combining these, we get a total penalty of -9, with an option of improving it to -2.