No wonder Luo Ningshan was so frightened.
He was born thousands of years ago, during the most splendid era of Earth's cultivation world.
In his time, formation masters were as rare as phoenix feathers and unicorn horns.
It could be said that each formation master held an extremely esteemed position. From this, one could imagine how powerful the Three Gods Palace must have been at its peak, guarded by three ancestors proficient in formations.
However, setting up a formation required various preparations, especially for those large and complex ones, which needed even more energy and heavenly materials and earthly treasures.
Generally speaking, in the cultivation world of Earth in those days, setting up a formation capable of trapping a cultivator at the peak of the Golden Core stage was definitely a very powerful formation, requiring the cooperation of several formation Grandmasters. They would need to work tirelessly, day and night, before the formation could be established!