C842 Failing Success

As for the method to refine it, Lin Yi decided to use the Nine Heavens Divine Thunder Technique to refine the evil power in the Blood Shang Sword.

For several days in a row, the Han Palace's peak rumbled with thunder, its sound spreading far and wide.

The second followed, followed by the third and perhaps even more lightning strikes.

A huge ball of Lei Yun condensed on top of the Han Palace