Victory By Mob Action.

The weak morale of his enemies broke even further when he got within a kilometer of them. A heavy gravitational field settled on their shoulders and brought them to their knees. The gravitational field covered more of his enemies the closer he got to them. 

This initiative of involuntary submission started from their front lines and then extended back to the bulk of the army. So their enemies were kneeling down in waves the closer Soverick got to them. That is not a posture meant to be taken when you have an army running toward you and calling for blood.

The ones at the back that saw the soldiers in front of them kneeling down knew something bad had happened. No matter how talented someone is, fighting on their knees is a very bad idea. It is either they are doing it on purpose because of a stupid reason or because they are being compelled to do so, or they may be surrendering.