When Wuhan's emotions got the better of him, they started to resonate with the world. The angrier he got, the higher the effect they had on the area around the sect.
The terrain around the sect started to shake, and the mountains started to crack on the surface, but the cracks were not that deep and were barely visible. Anything that had consciousness in the 1-mile radius of the sect started to feel the effects of the changes in the area around them.
Any Spirit Beast with the cultivation of Rank 3 or below did not even have the chance to fight back before they gave in to their primal urge to slaughter everything in their sight.
They did not feel any hunger, they did not feel any fear of the strong beasts, and crossed the boundaries of the inner section of the forest. The only thing they were feeling was the boundless killing intent.