Just as the masked men were about to kill the cultivators of the great cultivation world, walnut-sized metal balls suddenly flew towards them. The masked men were stunned because they recognized that these metal balls were black Yin lightning.
And the reason for their shock was not because of how powerful the profound Yin lightning was. On the contrary, the reason for their shock was that there was actually someone who could use the profound Yin lightning in the myriad realm battlefield. This was truly beyond their expectations.
The dark Yin lightning could be considered a killing weapon for ordinary cultivators. After all, it was quite lethal.
