Two Domains

The old man, along with the man fighting against Void paused and looked at Grey with bulging eyes. 

They turned to look at each other and they could see the shock in their eyes. They never thought they would witness something like this. Grey just went from the Second stage of the Sage Plane to the Peak in a matter of seconds. They also had special techniques to increase their strengths, but none of them was at this level. In fact, there was none that could improve their strength for more than two stages. 

Once it gets over that, it is no different from crippling themselves. 

"Everyone, leave now!" The old man warned the crowd who were watching the battle for fun. It had been entertaining so far, but now, it had gotten to a stage where even the bystanders would get affected by the battle.