The Poison-Horned Frog's Primordial Spirit Avatar had a cultivation level of the late human immortal realm.
Although its soul consciousness had already been erased, traces of demonic nature still remained within its Primordial Spirit Avatar.
Like maggots clinging to bone, that demonic nature had burrowed deep into the Primordial Spirit Avatar.
Anyone who directly refined this Primordial Spirit Avatar would also draw that demonic nature into their own soul, making a backlash from inner demons highly likely in the future.
I must purge the demonic nature from the Primordial Spirit Avatar, then refine it into a pill to achieve the greatest effect.
The Heaven Swallowing Demonic Art excels at being overbearing and direct, but its conversion rate is too low.
Refining it into a pill would yield far greater benefits.
As an immortal-grade alchemist, Lin Fei had long since mastered the art of pill refinement.
Over the years, he had comprehended every aspect of alchemy contained in the many immortal inheritances he possessed.
Furthermore, with his unique Great Treasure Refining Art, he was already exploring an alchemy method of his own.
There are many methods of alchemy, such as fire alchemy, water alchemy, and alchemy through harmonizing yin and yang. Most suit alchemists who cultivate the great daos of water, fire, yin, and yang.
The paths of metal, wood, earth, and ice are only suitable for balancing medicinal properties as supplementary methods.
But none of these methods are satisfactory when it comes to purging demonic nature. They require special immortal-grade spirit medicines to cleanse it before it can be eradicated.
Through the Mountain Sea Alliance's operations and years of accumulation, Lin Fei had acquired a considerable stock of immortal-grade spirit herbs and medicines.
However, he had none that could cleanse demonic nature.
He did, however, possess quite a few divine