Feng Jun's answer shattered Elder Guo's lingering hopes. "This is a self-circulating formation. It needs Spirit Stones to activate, but once the Spirit Stones are used up, it can absorb sunlight to preserve its spiritual energy and keep the formation running."
To be honest, he had only roughly figured out the formation's structure after entering the Spirit Field.
It had to be said that the Blue Star Realm truly lacked no astonishing cultivation geniuses. Someone had actually combined the Concealment Formation with the Spirit Plant Formation, and done so at minimal cost.
Once the formation began operating, it basically entered a self-circulating state, cleverly using sunlight to nurture all living things.
Feng Jun even suspected that Spirit Stones might not truly be needed to activate this formation. He felt that if someone could inject a certain amount of spiritual energy into it, they might achieve the same result.
However, while this formation was exquisite, studying it would take far too much time. Even though its foundations seemed to share the same origin as the formation knowledge Feng Jun had acquired from the Phone Plane, improving it was truly too difficult.
Moreover, Feng Jun's understanding of formations could not be considered particularly profound. He merely had foundational knowledge, along with cheat-like analytical abilities that had given him some practical experience in the field. That was why he had barely become the formation master others saw him as.
To be fair, if the patterns on the Weiyu tokens held by the Guo father and son had not been part of the Spirit Plant Formation, Feng Jun might not even have recognized what formation those patterns belonged to—he had only just thoroughly grasped the Spirit Plant Formation himself.
Of course, the fundamental reason Feng Jun was not very interested in this formation was