After the Spirit Vast Myriad Forest Profound Imprint was upgraded to the second order, it could not only command more Divine Banyan Power, but also gained many powerful new functions.
One of them was—the Tree War Spirit.
Simply put,
it meant implanting a Transcendental Mark into a Tree Spirit and transforming it into a war spirit.
With the aid of the mark and its owner's assistance, a war spirit could draw power from surrounding plants, instantly increasing its combat strength by more than fivefold.
For example,
a Spirit Oak Demon in peak condition could easily beat up three Mystic Adepts at once all by itself.
Furthermore,
through the power of the mark, Cheng Han could remotely obtain all of a war spirit's senses, with complete, all-around perception and no blind spots.
This showed just how immense the power of a Second-Order Profound Seal was.
On the other hand,
for the Spirit Oak Demons, receiving a Tree War Spirit mark meant that they could gain an overwhelmingly powerful ally at critical moments.
Thus, the several thousand Spirit Oak Demons in the factory had all clamored to receive marks, willingly becoming Cheng Han's eyes and ears.
In other words,
every tiny corner of the Spirit Oak Demon Factory was now under Cheng Han's strict surveillance.
Whatever anyone did or said in the factory, nothing could escape his eyes and ears.
At this moment,
inside a luxurious office,
Cheng Han muttered in a low voice, "There seems to be a faint trace of supernatural guidance, and it was deliberately concealed with Hidden Power.
"Other Mystic Adepts, or even Mystic Masters, would never notice it. But I am far too familiar with the power of concealment."
The apprentice Mai Kewen had shown a strong interest in the Fuel Workshop earlier, immediately catching Cheng Han's