When Yue Chao Xun recalled Wu Hong Qing's words to him before he came to the Nine Serenities Battlefield, he would remind himself to be cautious when dealing with Mi Xuan.
Mi Xuan was originally a King of Gods. His physical strength had been reduced to that of a Nine Star God of War after he possessed Tang San Pao since Tang San Pao's Celestial Origin Energy had only begun to develop traces of the Divine Energy. Nevertheless, his soul attacks were still those of a King of Gods. He might not be able to cast his soul attacks in the Nine Serenities Battlefield to the restrictions, but after leaving the Nine Serenities Battlefield, he would no longer be restricted. Moreover, his soul attacks were that of an intermediate King of Gods, not an ordinary King of Gods, which meant ordinary Kings of Gods would not be able to withstand his soul attacks.