Before Wuding was here, Wen Zhong told him one thing, "Strength and state can't reflect how powerful one is."
Some people's strength far exceeded the limitation of state. Wen Zhong hoped Wuding could be one of them.
Hence, his mana was sealed as he came to the dangerous Lake East.
Three more days until his battle with Lei Jing. Three days were sufficient for many things to happen.
After Wuding lost his mana, he then realized how weak he was. The water surface was calm, but beneath it was tempestuous.
The undercurrent was constantly distorting Wuding's form. This was not the scary part. The scary part was the man-eating sea mammals in the undercurrent.
Wuding was not able to rely on Flying Star Incantation but only his wooden knife and his astonishing spiritual sense.