In the battle between the Centennial Sword Ancestor and Master White Mountain, no one dared to interfere. They were fighting in the area between the Alliance and the tribes' army. This made it so that they couldn't fight directly for now.
And since they couldn't do that, they were simply watching the fight between the two immortal ascension realm experts. After all, this was something that could only be witnessed once in several lifetimes for them.
Most of them might not even live ten of their lifetime to see something like this. Thus, they decided to learn from it and hope that they too could improve from it.
Because of how focused they were on the fight, the soldiers of the northern tribes couldn't react when a rain of sharp winds slaughtered them.
"ARGH!"
"NOOO!"
"WHY!!!"