C1526 Shattered star shrapnel

How could Li Xiaoxing know that Qin Lang had even withstood the Nascent Soul lightning tribulation? Furthermore, Qin Lang had taken the Thunder Bone Worm Pellet, so he originally carried the power of lightning, and after going through the baptism of the Nascent Soul lightning tribulation, the Thunder Bone Serration in Qin Lang's body had basically formed