This is quite a rare occurrence. You must know that the cultivation systems of different cultures are mostly incompatible with each other. For example, the formations and restrictions of Lu Country seem like heavenly books to the Transcendents of the Southern Border, while their sealing skills are essentially a whole different thing.
If a Purple Cloud Formation is set up in the Southern Border, these sorcerers likely won't be able to handle it, so Lu Country would need to send someone to host the formation. The Purple Cloud Formation can suppress the Transcendents inside, meaning if there is another rebellion in the Southern Border, the host can easily suppress the sorcerers within the area with just a little guidance — if even the Bohai Giant Snake can't withstand it, how could you possibly resist?
This way, the Southern Border can be completely brought into control!
