After testing out the power of the sword again, Xuan Yi kept the sword and took out the other spiritual materials to refine.
The pill furnace vibrated. Under Xuan Yi's control, a batch of pills was produced in a short while.
This was a grade five pill, the Invincible Spirit Pill.
Moreover, under Xuan Yi's super powerful technique, all the pills were top-grade.
For ordinary spirit pills, one could speed up cultivation within seven days after consumption.
Whereas for this top-grade pill, not only did its medicinal effects last, but also its effects were even more powerful.
An ordinary Sect Master who swallowed one pill might even be able to raise a grade.
The effects were extremely terrifying!
To Xuan Yi, this pill's effects were good, but it wasn't particularly great.
After swallowing two pills, the effects were obviously reduced. Xuan Yi was prepared to leave all the subsequent pills for his disciples.
