Seeing as Athos could beat a Bijuu in a fight in his base state, the fact that Athos' stats were essentially doubled right now meant that it didn't matter if Ray could keep up with someone in their Version 2 state, seeing as Athos could take on something much stronger and faster than that with ease. But to be fair, one could assume that Ray somehow had made it so that he reacted and dodged Athos' attack, coming to try and strike Athos with his own. Now it was at this moment that Ray had essentially set himself up for disaster.
The two men were no more than a foot or two from another, seeing as Ray had been trying to slam a black ball of energy directly into him in an attempt to kill him... But Athos had just the counter, and he made sure to wait for just a moment or so before Ray's attack would connect before he would activate. From his body would come forth an almost instant barrier that spread out to a total of ten feet, and within those ten feet, all chakra and buffs would instantly be ripped away from Ray. Ray would instantly lose all connections with his chakra, with his beasts, and any other type of power up that he had. Meaning that if Ray's part animal form required any type of energy to sustain it, that it would cancel and he would revert back to normal. It would also mean that Ray's eyes would be reverted into their base state, lacking both the EMS and Rinnegan. But the thing about this was that it also made the same things happen to Athos, meaning that his own eyes would revert back to their normal state. This would be the man's Deadzone Creation, an area in which no chakra can exist.
Now in this moment, Ray's bare hand would come to press against Athos because the attack that was there would essentially be erased from existence, leaving the two of them with nothing but their fists. Now without any chakra and in his current form, Athos could obliterate whole mountains within a bunch, destroy Susanoos with ease, and as said before, even fight Bijuu. Ray would no longer have any type of Dojutsu to help him follow Athos, the man having needed it before to see him, and that meant Athos would hopefully be able to end this fight before Ray even knew what happened.
Athos' left hand would have blurred forward, aiming to crash directly into the chest of Ray, which would be meant with the sickening snaps of his bones instantly becoming a spider-web and then dust, almost in a cartoon style, the force from the blow strong enough to shatter his ribs as well. The damage that would be done to his organs could be the same as his bones, probably turning them to paste, or doing deathly damage to them, with a single punch. But that wasn't the only thing he was going to do, his right first coming with as much force and strength he could muster, aiming to drive his fist directly into the right side of Ray's face. Now the first blow had come faster than Ray could see and threatened to kill Ray, the second would kill Ray even if the first one had missed. The second blow, if it connected with Ray's head, would literally obliterate his skull and cause a horrible explosion of blood to fly backwards across the green grass that was behind Ray, followed by the disgusting amount of blood that would spurt out of Ray's body where his head had once been. Again, Athos could shatter a mountain in his range with ease, so doing the same to a human head that currently had no buffs was more than easy.
The Deadzone would only last Athos' action, meaning Ray would have to somehow find a way to dodge those attacks without access to any of his jutsu, the man having already been in the middle of trying to punch Athos in the stomach. The Deadzone took no handseals, so Athos hopped to have punched Ray's head off his shoulders before Ray had even processed that his chakra was gone and his life was over. Hopefully this ended the fight.