He didn't avoid the elbow slash he just detonated the energy before she landed the attack he couldn't withdraw fast enough but he could detonate the energy he had stored instantly. Also yeah her hand was on the sword and yes she has bones made of metal but still an impact from a 500 pound robot hitting her at 210 mph didn't move her? I mean that's a lot of force. and the two cuts on his side are where she kicked him I just assumed that yes she cut him a little first but about the time that hit her she just stopped there.