Mi Xuan was not surprised by Duan Ling Tian's divine artifact.
After all, Wu Hong Qing, the Temple Master of the Title Temple, had speculated that Duan Ling Tian's master, Feng Qing Yang; the Heavenly Emperor of the Solitary Destructive Heaven, must have had a fortuitous encounter while he was in the Asura Hell that propelled him to godhood in just a few hundred years. Moreover, the fortuitous encounter even helped Feng Qing Yang become a rudimentary King of Gods. As such, Wu Hong Qing deduced that Feng Qing Yang must have also obtained many divine artifacts during his time in the Asura Hell. Following that thought, Wu Hong Qing concluded that Feng Qing Yang must have given his one and only true disciple a divine artifact.