Deng Yin uses the Blood Pool for sacrifice, transforming the demon cultivators who come to seek him into Blood God's sons, thereby partially "demonizing" them. Only those who acquire the Blood Demon Incarnation can survive in the future Demon Realm.
Similarly, Shi Feiyang leads the group of immortals through tribulation, using the power of the Heavenly Tribulation to "immortalize" those who come to him.
The powerful Earth Immortals are themselves not far from Heavenly Immortals, even possessing stronger mana; however, their primordial spirits have not cultivated to the Pure Yang level.
When they unleash flying sword magical treasures to resist the Heavenly Tribulation, the qi sensation will transmit the power of the tribulation into their bodies, honing their spiritual energy and refining their flesh.
The subsequent Demon Tribulation further hones their mind and temperament.
