Maybe the secret about his profound handle and his heaven tribulation resembled lightning art connected to those you’ve said. For me, at first I think YC is either the descendant of two creation gods or a reincarnation of a creation god or both, but he is actually a descendant/reincarnation of a secret descendant of Ancestral God who is higher than those 4 creation god and 4 devil emperor. Which is why he is able to wield both the darkness/light at the same time that even any creation god was not able to do, has an ability to comprehend any laws and profound art, and even comprehend law of nothingness that the creation gods were unable to.
SEE THE QUOTE FROM CHAPTER 1379 BELOW
"Who… are… you… He desperately tried to release his will. He could sense that she was able to read his thoughts.
But she did not reply and every corner of Yun Che’s soul was once again engulfed by that terrifying beautiful voice…
“The Law of Water, the Law of Fire, the Law of Wind, the Law of Lightning, the Law of Earth… These are the five most basic elemental laws of the Primal Chaos Realm.”
**“The Law of Light (Life), the Law of Darkness (Death), these are the high grade elemental laws which stand above the five basic elemental laws.”
“The Law of Space (Dimension), the Law of Time (Reincarnation), these are the supreme laws of creation which stand above the elemental laws.”
“And the origin of all of these laws, the law which stands above the supreme laws… 【The Law of Nothingness】.”**
“…” Yun Che felt as if he was listening to some arcane heavenly tome.
“Having experienced life and death, having stepped across the dimensions and reincarnation itself, there is finally a living creature who has come into contact with the Law of Nothingness that even the Creation Gods themselves have never come into contact with before.”
Yun Che: Law of… Nothingness?
“Regarding the you who is able to come into contact with the Law of Nothingness, I am already unable to see your destiny clearly. Go and find the other two parts of the World-Defying Heavenly Manual, I eagerly await the day that I am… 【truly】 able to meet with you.” <
ATG Chapter 1379