"Father, what are you doing?" Wu xiangtian asked as he looked at the two tormented men of sacrifice.
The black-feathered man slowly turned around and faced them,"It's a barbarian art passed down by my Wu tuan bloodline. It can stimulate their potential at a critical moment."
While they were talking, the screams of the two barbarians became more intense. The thick needles on their bodies were slowly entering their bodies.
Xia qingchen had heard before that other than the physical body, there were very few barbarians who had mastered some mysterious barbarian Arts. They could stimulate the potential of the human body to the extreme.
A barbarian with a body at the middle phase of the major astral level could stimulate a body at the late phase of the major astral level.
However, this was at the cost of sacrificing one's life!
