"Isn't it said that only Heavenly Rank experts can barely create an afterimage? How come..."
At the side, Si Mo clearly reacted at this moment too, and his unfinished mumble also summed up the confusion in Ye Ku's words just now.
For an afterimage, speed needs to reach an extreme before it can appear faintly. The faster the speed, the sharper and more realistic the afterimage, and the longer it stays.
At least for cultivators of the Earth Rank Third Realm, this is impossible to achieve. Only upon reaching the Heavenly Rank level, leveraging the Sky Power to attain extreme speed, can one possibly create a trace of afterimage.
Moreover, such an afterimage is easily seen through by others, with some afterimages dissipating instantly in the air, completely failing to confuse the enemy.
But as for Yun Xiao in front of them, not only did the afterimage deceive all the onlookers, but even Bai Wushuang himself didn't notice, fighting enthusiastically with a shadow.
