Su Yu looked over the options and finally settled on one: the Yin-Yang Heavenly Pill.
The difficulty of refining it was only equivalent to that of a fifth-grade low-tier pill medicine, but the effect of the Yin-Yang Heavenly Pill could increase the chances of a True Monarch in the Nascent Soul Realm breaking through to the Dividing Spirit Realm by more than fifteen percent.
Fine quality could even reach twenty percent.
Required core materials: Three drops of Yin-Yang Water, one Dao Fruit of Soul Splitting, ten drops of fifth-grade Longgou's essence blood, and one stalk of Nine-leaf Condensing Spirit Grass.
The rest were more than twenty kinds of fifth-grade auxiliary spiritual medicines.
Among the three pill formulas from the Ancient Alchemy Scripture that were effective for breaking through to the Dividing Spirit Realm, the formula for the Yin-Yang Heavenly Pill was not the most outstanding. However, Su Yu had heard of all the materials it required.
