It was obvious to tell Lei Ao's increased strength.
But Ji Fengyan could sense that the vital energy in her inner core was slowly depleting. The rate of depletion was increasing, and it also meant that Yang Jian's powers were increasing continuously.
This made Ji Fengyan surprised.
A figurine was made using the blood of an immortal cultivator. Even though it could make use of the spirituality of its wooden body to absorb the essence of nature for energy, there was a limit to this energy conversion.
As the energy being converted increased, there would be a greater depletion of vital energy. It meant that the actions of a figurine were like a colour staining machine and vital energy was only a component.
During the battle, this small amount of depletion had gradually increased, causing Yang Jian's vital energy to soar rapidly!
This was a consideration that Ji Fengyan had not thought about when she had built Yang Jian.
