The trapping formation is used to trap the other monks, and the killing formation is used to kill Tan Liang Zhi. As long as the trapping formation can trap the other monks for a few breaths, Ning Cheng will be sure to kill Tan Liang Zhi. As for whether killing Xu Liangzhi would arouse Xu Kai's anger, that was not within the scope of Ning Cheng's consideration at all....