It would seem that Griffon had completely severed all connections with the witch's enchantment that was working throughout his body. He wasn't carrying out and withstanding assaults in the same manner that he performed a while ago.

When I realized that I now had the upper hand in dispatching him, I smiled smugly to myself in the sense that this was such a right timing to end his life. I retreated while simultaneously ramping up the potency of my color power until I had the sensation that my last charge was about to explode out. After that, I made up my mind not to hesitate, so I ran at him...