Devil Sealing Lock

According to Che Qigong, the Devil Sealing Lock is actually an incomplete Profound Heavenly Treasure that contains Chaotic Yin Yang Qi. It not only has its own independent space, but also thirteen layers of ancient restrictions cast onto it by the top-grade formation masters of the sacred realm. Once someone is trapped inside, they can only escape if they possess the ability to dispel Chaotic Yin Yang Qi on their own; otherwise, even removing the thirteen restrictions from the outside would do nothing. In its complete form, this treasure could trap even a true immortal, unless they happen to possess an ability that counters it. Even in its current form, it is more than enough to trap a Sacred Ancestor.