A Peak Sovereign Gnome might be powerful to others, but to Grey and his friends, he was no different from other Gnomes. The reason for this was simple, as long as Grey cuts off his connection between him and his Puppet, he is bound to seriously wound the Gnome if not even kill him in one blow.
This was exactly the case as the battle started, the Gnome naturally did not recognize Grey and brought out his Puppet from the start. Grey and his friends were fighting against the Peak Sovereign Gnome, and although the Gnome had subordinates, he could sense that the strength these youngsters were able to use was more than ordinary, so he told them to sit back and only attack to distract them once in a while.