Klaus vs Gregory

Gregory locked his eyes on Klaus, staring at him coldly. 

Klaus stared at him, he felt a little pressured since the distance in strength was by no means small. Fighting above stages in the Sage Plane was not the same as when he was in the Overlord Plane. 

With the increase in Plane, it became harder for geniuses to transcend stages when fighting. When in the Origin Plane, he could easily transcend three stages, especially against an individual with a lower elemental grade, but as he got to the Overlord Plane, things started to become harder. The Sage Plane was even harder than the Overlord Plane. 

'Should I have allowed Grey to fight this battle?'