The reason the Thousand Mechanism Obscuring Yuan Array was controlled by mid-Profound Spirit cultivators was that activating this array did not rely entirely on soul energy; it also required a certain amount of essence energy and magic power.
As for a cultivator's magic power, the requirements were extremely strict: the essence energy had to be pure, and the magic power could not exceed that of a mid-Profound Spirit cultivator.
If the pure magic power exceeded the array's requirements, the soul-energy sigils within the array would undergo an abnormal change. The entire array would then operate sluggishly.
The reason the Profound Spirit cultivator's soul realm had to reach the peak Profound Spirit stage was that controlling this Thousand Mechanism Obscuring Yuan Array required the support of vast soul energy. If the soul energy was insufficient, the array would naturally become unstable as well.
At the same time, a cultivator's soul energy was far more difficult to replenish than magic power.
To ensure that the controlling cultivator possessed sufficient soul energy, they could only search among mid-Profound Spirit cultivators for someone whose soul realm had reached the peak Profound Spirit stage.
At this moment, facing Miao Lin's spell as it enveloped the Blood Fiend Nether Frog, Qin Fengming's heart was likewise suspended high.
Blue light flashed in his eyes as he stared intently at Miao Lin and the enormous Blood Fiend Nether Frog within the spell.
As vast soul mist swept forward, the enormous Blood Fiend Nether Frog, which had been lying motionless, suddenly began trembling.
Seeing the enormous demonic frog display such a reaction, Qin Fengming and the two others all felt their hearts tighten.
A terrifying demonic frog at the Mahayana stage—if it could move, the terrifying attacks it unleashed would still be something Qin Fengming and the two others