Nine-Layer Star Art, even among the countless demigods, Void Gods, and even True Gods of the Divine Domain, was known as the strongest Star Art.
Back then, when Li Yuan had first learned of the concept of a "strongest Star Art" from Demigod Bai Shan, he had once wondered: if a Nine-fold Star Pulse could cultivate a Nine-Layer Star Art, then if one had a Ten-fold Star Pulse, why could one not cultivate a Ten-Layer Star Art?
Unfortunately, whether it was the information Guyou and Qiu Bingzun had given him, or the archives of Awakening Star Ancient City, they had only ever mentioned the concept of a "Perfect Star Pulse," and never a Ten-Layer Star Art.
Not until recently.
After Li Yuan obtained the token from Alliance Leader Dongfang, the other party had mentioned "Perfect Star Art" for the first time.
This kind of Star Art was far too rare. Even among Celestial Gods, only a very small number had successfully cultivated one.
Among the top great powers of the Divine Domain, the vast majority of True Gods would never encounter a single case in their entire lives, and thus it was unknown to most.
Above Nine-Layer Star Art, there truly existed a deeper and more powerful "Perfect Star Art."
A Perfect Star Art was a "Ten-Layer Star Art."
First, it required a Perfect Star Pulse to carry the Ten-Layer Star Art. Second, it had fairly high requirements for comprehension of the laws.
These were merely the basic requirements for cultivation.
Finally, one had to "merge the Fire Seed into the Star Pulse." Only with one's purest life Source Power could the entire Star Pulse and Star Mark become perfectly unified.
"Whether it was the Sky Snake Race or Awakening Star Ancient City, neither had produced many Nine Star Pulse