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If it's just a practitioner from a medium-grade Divine Domain Realm, it should be manageable. Although the Heavenly Principle Tower needs the influence of a hundred thousand years to completely enslave the opponent, he can bring the Heavenly Principle Tower with him to enter the Netherworld.
The time flow between the fifty-fifth and sixty-third layers of the Netherworld and the Spirit World differs by a factor of ten million; a hundred thousand years would only equate to three to four days of the Spirit World's time when the Heavenly Principle Tower is placed in the Netherworld.
It's nothing more than a bit troublesome.
What Lin Yun is truly worried about are those from the upper-grade Divine Domain Realm.
The inability of the Heavenly Principle Tower, at the level of a medium-grade divine artifact, to enslave them is one aspect.
Such powerhouses, even among the countless Divine Realms, cannot be overlooked.
