[quote=@KabenSaal]
<Snipped quote by Guess Who>

It absorbs and reflects kinetic energy. So, the sword's energy would be suddenly brought to 0 and the energy would be redirected at him, of course over a larger area than a sword's edge. So, it would be more like a hammer blow than a sword cut.
[/quote]

I think Loki's main question though was if Mokuren would still feel pain, and I just went overboard and tried to explain the entire semblance from the limited evidence I had gathered.