Heaven Thunder Cliff had treacherous terrain.
Affected by geomagnetism, it was scourged by lightning year-round.
The surrounding mountain range was likewise bathed in lightning throughout the year, earning it the name Heaven Thunder Mountain Range, though its core remained Heaven Thunder Cliff.
As the masters of this region,
the Luo God Clan naturally could not allow such a unique environment to gradually spread. Thus, 130,000 years ago, Luo Zhijing, then patriarch of the Luo God Clan, personally acted. With the power of a Spirit Grade Heavenly Sovereign and a Grandmaster of Array Dao, assisted by three Spirit Grade Heavenly Sovereigns and twelve Earth Supremes, he used Heaven Thunder Cliff, where geomagnetic fluctuations were strongest, as the core to establish a Seven Revolutions Aurora Grand Array. He also built a fortress and concealed the core controlling the array within it.
From that point onward, Heaven Thunder Cliff became one of the Luo God Clan's key fortresses.
In theory, the Seven Revolutions Aurora Grand Array required seven Earth Supremes to operate it at full power. With the terrain's influence, it could even bridge the chasm between Earth Supremes and Heavenly Sovereigns. Within the Heaven Thunder Mountain Range, it could trap or even kill a Heavenly Sovereign. Since the construction of the grand array covering the Luo God Clan's headquarters, it was one of the top five most powerful grand arrays.
Without a heritage of more than ten thousand years, it would have been impossible to produce such a formation.
This was also what the Blood God Clan had always coveted yet could never obtain.
After all, although the Luo God Clan had declined...
There was an intergenerational talent gap within the clan...
"But with seven Supremes operating the array, they can keep us outside. It may not trap me, but it can