Bish, you over compensate too much xd can't just make it easy to read. To fully grasp your move, i had to read it twice xd
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With my downward strike, and viewing your upward strike into the hilt, i simply let go of my swords hilt, forcing due to your momentum, and the current momentum of the sword to yes be knocked upward, but also spin in your direction, most likely slicing your arm a deep gash (hard to ignore mind you) Then due to the proximity of where your hand would be, i cross step to the left (your right) i slam my right palm, into the side of your the base of your sword, not the hilt, and due to the pressure at the apex, it would make a lever type motion, that would push the sword out of your grasp, or otherwise break your fingers.(since all i did was let go, both these things would be occuring around the same time mind you). As i finish the palm thrust, and assuming it is successful your sword has flown to the left (your right) at least a meter. Using my footwork, i spin around your hand then strike my elbow with the spin momentum into your own arm, just below your elbow on the forearm(probably just a fracture).