"This..."
Within the Divine Light, Manjusri's complexion changed. She saw Yin Yang and the Five Elements transform into Seven Rings, which settled on her head, four limbs, and around the waist and belly of her physical body, as well as within the Sea of Consciousness of her Primordial Spirit.
It was indeed a Taoist prohibition!
A fortune is paid for the loyalty of a horse; the Old Ape has been captured for a thousand years, previously serving as a slave of the Heavenly Demon Palace, with low status and poor treatment. Now that he has defected, he must be sincere; even if not, it's of no great consequence, so Xu Yang need not impose a prohibition on him.
But for these Earth Immortals and other True Immortals, it was not the same. Xu Yang did not have enough time to thoroughly indoctrinate them to ensure their loyalty, nor could he stake the success or failure of this battle, or the safety of his own side, on whether they were sincere or not.
