Chapter 1577 - 507: A Thousand Years Later in the Profound Yellow Realm, Enveloping the Xuanhuang Sect with True Immortal Seventh-Order Formation, Heaven Wood Sumeru Immortal Array_6
Moreover, the energy to activate the Immortal Realm Great Array comes from Immortal Crystals, or even Immortal Stones.
Each operation is enough to make a sect bankrupt.
So unless absolutely necessary, no sect is willing to activate their own Immortal-level array.
However, if it is activated at a critical moment, it can achieve the effect of a decisive victory.
To some extent, this is considered the ultimate trump card of many ancient sects.
This is why, in the Earth Immortal Realm, no one would push these ancient sects to the brink of life and death.
If the other party fights desperately, they may take you down with them.
"Indeed, normally it would be impossible for the Mortal World to set up an Immortal-level array."
"But the appearance of the Evergreen Immortal Vine has completely changed this."
"Because it can steal Origin Energy from the Immortal World, and draw a large amount of Immortal Qi."
"Now, the numerous vines on the Evergreen Immortal Vine, each one is equivalent to an Immortal-level spirit vein."
"It can continuously provide vast amounts of Immortal Qi."