The Great Demon Transformation Technique can turn cultivators into demon species. Demonization is the process of humans transforming into demon species. During the demonization process, the cultivators' strength becomes very low.
It must be said that the Sky-Reaching Ancestor is extremely cunning. He uses the Great Demon Transformation Technique to demonize the Biluo Heavenly Emperor's nine avatars. Once they complete demonization and become demon species, their strength will greatly increase, each one stronger than their original. If an avatar is killed during the demonization process, the original will suffer backlash and their cultivation base will be reduced.
Two possible outcomes, whichever occurs, are completely detrimental to the Biluo Heavenly Emperor's original self. But for the Sky-Reaching Ancestor, it's all benefits without a single harm. That's why the Sky-Reaching Ancestor is so recklessly smug.
