But actually, these are just peripheral supplies.
The truly superior Mountain Protection Array, its foundations, array plates, and other components all need to be crafted and refined using special Dharma Treasure spirit materials; those are the real significant expenses!
Just like how Zhou Chun initially went through great hardships to collect enough Yellow Dragon Stone!
By the time he needs to gather the relevant Dharma Treasure spirit materials, it's feared he will have to spend a fortune, not knowing how long it will take to accomplish.
It is said that to set up a Forbidden Formation capable of resisting a Nascent Soul Stage True Person, the materials needed for the formation alone are an astronomical expenditure, worth at least tens of millions of Spirit Coins!
Even those major sects would need to make a considerable effort to set up such a formation.
