No matter who faced Bai, that person would end up experiencing extreme pressure!
Other than his extreme speed he also had unfathomable strength.
Yi Yun's speed clearly could not keep up with Bai's. This worried many of the Tai Ah Divine City warriors.
At that moment, Yi Yun closed both his eyes. A human's eye would have the after-image of a person left behind in it if the opponent was faster than a tenth of a second. As Bai's speed was too fast, one would only see numerous after-images due to his blazing speed. As a result, it was very difficult to lock onto Bai's location.
Yi Yun opened up the Purple Crystal's energy vision. Within the energy vision, all the after-images disappeared, only leaving behind a energy beam that moved at high speeds!
The energy vision could see through to the most fundamental energy flow, leaving no after-images behind.
In his energy vision, Yi Yun was able to clearly see Bai's location.