Mo Lingzi actually saw something else.
The Crown Prince did not look like he would be crippled. The dragon energy seemed to be quite strong, but... it was faintly leaking.
However, it did not leak too much. How was it affected?
Of course, Mo Lingzi did not know that the Crown Prince's dragon energy was not this strong in the past. It was also because Xie Qiao was strong enough. Ever since she got together with the Crown Prince, she often gathered good karma for him. She even offered incense to the Gods herself, and she would also do it in the name of Zhao Xuanjing.
After such a long time, he naturally made up for the dragon energy.
Moreover, Xie Qiao gave him many talismans, which also restrained the situation of "leaking of energy".