However it has been said that the effect of being reformed is hellish like pain during the transformation, since we´ve only heard of this and not seen it we cannot completely confirm it. We can see Xiao Yan swallow the pill in chapter 103, but since he is not fataly injured we cannot see the full effect of the pill. He did mention that he felt no pain, and that it might have been a fake. His master Yao Lao confirmed that it was not. The shout that Xiao Yao let out after swallowing the pill, knocked out around 15 magical beast bird types, in the area.
Since the pill Requires 2 6th rank dragon type magical beast´s cores, it is extremely hard to make one. It is unknown if there are other ingredients to it. But since none have been mentioned so far, we´re gonna assume that there´s not.
Hope I helped. And Thank you for reading.
- Xiao Yan
- Gu Ling