C831 Yun Huan Dan

As a Pill God, aside from being able to refine all kinds of pellets, Wu Chen was also well-versed in the attributes and uses of all kinds of pellets. He was naturally aware of this Yun Huan Dan as well.

To put it bluntly, Yun Huan Dan was a kind of forbidden pill. Once consumed, this pill could greatly increase one's cultivation and strength in a short amount of time.

But