In the Esoteric Sect of Skull Plain, there has always been the practice of "Empowerment". Before a master passed away, he would transfer his accumulated mana into his disciple. The Heavenly Demon Transformation Technique that Su Heng now faced was derived from this very practice.
The difference was that it shifted from a passive to an active process.
By cultivating the Heavenly Demon Transformation Technique to a high level, one could seize the strength of others for personal use.
However, this cultivation technique had a limitation: the cumbersome forces of two different energies were incompatible, like water and fire. If they coexisted within the same body, it would cause chaos, making it very easy to lose control and perish in a self-explosion. Therefore, only two cultivators practicing the same lineage and source of strength could make this demonic technique effective.
For Su Heng, this technique seemed somewhat of a burden.
