In the silent hall, Jiang Xuan stared in astonishment at the ancient martial arts manual in his hands, so much so that he instinctively held his breath. The content at the end of the manual was simply too shocking!

"How is this possible?!"

Jiang Xuan could only think of this one thought.

Calamity Force is a more advanced energy than innate force; it is a qualitative change!

Initially, Jiang Xuan had forcibly used a move called "Phantom Ghost Slash", which required consuming 30% of his innate force.

Though the Phantom Ghost Slash was strong, that was due to the technique itself being strong, not because it consumed more energy to be powerful. The "Phantom Wind Chase" (幻虚追风式), created by Jiang Xuan, was not as sophisticated, so its power was much weaker, and its energy consumption was also significantly smaller.

At that time, Jiang Xuan had reached the late stage of innate power, with his basic innate martial skills fully mastered. His innate force was 30-40 times greater than a typical innate full completion!