Out of 8 times, Kahn killed Axel once by using Dimensional Cut, his killing move. But now that Axel revealed another one of his Divine abilities called Blood Monarch that allowed him to create a blood monster to attack the enemy force from a single drop of blood… a dubious plan formed in Kahn's mind.
Who said Kahn had to fight Axel one on one just because both of them were chosen heroes?
He had the advantage in numbers so there was no reason for him to play fair against the guy who was already 5 times stronger than him based on his physical stats. If not for War Deity body, Axel would be 10 times stronger than Kahn himself.
On top of it, Axel obviously had more divine abilities so Kahn was going to make up for their difference in his own way.
The battlefield was now filled with more than 10 million monstrous creatures. Each sizing at least 2 meters and all of them looked like amalgamations of various species and appearances he had never seen before.