After having mastered the blade technique's sixth level, he easily advanced through the following seventh and eighth levels. With his strong spiritual force, he was able to circulate these levels no matter how complicated they were.
Compared to the sixth level, the seventh and eight levels produced a much higher speed. Upon activation, the small stone would immediately hit the target, leaving the target almost no time to react. Moreover, its destructive force became more astounding. The seventh level produced twice the force of the sixth level while the eighth level generated twice the force of the seventh level.
Chu Li could imagine what would happen if he used this technique to fight Tan Hu. It would be impossible for Tan Hu to escape then.