Complex sentence: Heartbroken, Pang Yong shouted to the entire troupe that Xiao Wei is the real demon, not Peirong, and he proves it by trying to slash Xiaowei but cannot since Xiaowei's body is as hard as steel.
Split into simpler sentences: Heartbroken, Pang Yong shouts to the entire troupe that Xiao Wei is the real demon, not Peirong, and he proves it by trying to slash Xiaowei. He is unable to do this since Xiaowei's body is as hard as steel.