The energy of the Dharma Master Shriver lurking in the body of the cold son has been hidden, so before that, the seven-headed Python could not feel it, otherwise he would not change easily. It should be noted that the ancient monsters and beasts, like this kind of spiritual cultivation, can fully develop their greatest potential only when they become themselves, but it will take a lot of training to become human again after such transformation, which is what they do not want to do.
The reason why he changed tactics and tried to change back into human form would be worn and repaired to become a seven-headed Python is...