Han Li's pupils contracted slightly upon hearing this exchange.

Thanks to the Heaven Controlling Vial, his cultivation advancement had relied heavily on pill consumption since his return to the Immortal Realm. Hence, whenever he got the opportunity, he would read through all types of books related to pill refinement. This was particularly true back when he was still in the Blaze Dragon Dao, and during his readings, he had learned about the Profound Beast Essence Pill.

The pill was refined using the placentas or eggs of certain powerful beasts as the primary ingredients. These demon beasts often possessed incredibly powerful physical bodies, and taking this pill would infuse the power of the demon beast's bloodline into the body of the consumer. Not only would this drastically enhance their physical prowess, the consumer also had a chance of attaining that demon beast's innate abilities.

If the primary ingredients were acquired from immortal beasts that had innate mastery over certain law powers, then there was a chance that the resulting Profound Beast Essence Pill...