After hearing the words come out of Nes's mouth. Sir K wanted to protest, suggesting that the best chance they would have was to fight together but as soon as Sir K turned his head. Nes was no longer there.
Ray had used the shadow skill to once again disguise himself and move around the arena. Ray had a particular place and person in mind who he wanted to see.
This left Sir K on his own to go against Morfran.
"You really think you can go against me on your own, bring back the other guy!" Morfran shouted as he shot sparks of lightning out from his hands.
Sir K had healed but he still wasn't at 100 percent but he didn't need to be. Sir K had decided after watching the stranger fight to put his trust in the man, after all, that was all he could do. So all Sir K needed to do was district Morfran and survive.