Ling Han killed till the whole world became dark.
He had powerful battle prowess, comparable to that of a Third Tier Heavenly Venerate. Furthermore, this power came from himself entirely. It was like a dimension was transmitting power to him. It was endless and continuous, but under such intense fighting, he actually felt a hint of weariness.
This was because he was only a Pseudo-Heavenly Venerate, after all. The Power of Dimension in his body was only a model, and had not transformed into an actual dimension, so the power supplied to him was naturally limited.