No amount of heat and shifting, punching, and moving around would stop Akechi from simply pressing his the blade of his knife, unhindered now due to the self removal, up against Jack's neck.
Yeah, his opponent had forgotten about that apparently. Faster then his meta opponent could wrap his rubber arm around Akechi, Jack would likely die from a missing head and a gutted throat far quicker then Akechi would die of heat. He had made his right arm miss, but he wasn't able to stop the left arm now, at all.
Of course, the only thing that stopped Akechi from just killing the annoying meta was disqualification. But the dangerous glint in his eye hinted perfectly well that if Jack wasn't willing to surrender, then Akechi was willing to hold the man's head up to the crowd as a symbol of human preserverance over the magical.
"Rahahahaha!!!" Akechi laughed like a man possessed.