To establish an immortal domain, one needed not only the Four Extremes Heavenly Pillars, but also a wheel to balance heaven and earth, an immortal-domain supreme treasure capable of drawing in and expelling the waters of the Chaos Sea, and a Heavenly Dao Source Artifact to suppress the Chaos Grotto Abyss.
Considering how exceptionally violent the Chaos Desolate Sea was, ordinary Heavenly Dao Source Artifacts, heaven-and-earth wheels, and immortal-domain supreme treasures would not be able to withstand it. Everyone therefore raised the grade of these treasures by one level.
They set the Heavenly Dao Source Artifacts at low-grade Connate Spirit Treasures, while the heaven-and-earth wheels and immortal-domain supreme treasures were replaced with top-grade Connate Spirit Treasures.
As for the Four Extremes Heavenly Pillars that held up the heavens, Chen Nianzhi directly replaced them with top-grade Connate Spirit Roots.
After all, Chen Nianzhi possessed the connate supreme treasure, the Heaven-and-Earth Primordial Qi Bottle. So long as he had enough Primordial Undying Spiritual Light, the cost of advancing them into top-grade Connate Spirit Roots was not too great.
After setting the specifications, everyone prepared to forge the various treasures. Before that, however, Chen Nianzhi recalled the Sword Emperor Tianyao, so he released him from the Guixu Pearl and used the Human-Soul Book to convert him.
As the deputy palace master of the Sword Abyss Immortal Palace, the Sword Emperor Tianyao's cultivation was also exceptionally formidable, and he had his own specialized methods.
The Sword Emperor Tianyao excelled in the path of slaughter. In terms of offensive methods alone, he had even touched upon the eighth realm of the Primordial Chaos Emperor Lord, and his combat strength was among the very best at the seventh realm.
With the Sword Emperor Tianyao joining them, the six Emperor Lords, along with the three early-stage Emperor