Xu Zhu used Xiao Wu Xiang Gong in his battle with qiu mo zi. where the hell did he learn it from ? its used my li qiu sui and im dont think tonglao knows it. tong lao taught him tiansan 6 yang zhang, tiangsan zhe mei sou, and shen si fu. and i dont believe li qiu sui taught him anything, so where the hell did he pick it up ? and i got a ques abt xiao wu xiang gong. what does it do ? does it only immitate any gong fu ??