There is insufficient historical evidence to support the claim he knew any skills beyond archery . Contemporary records never once mention Zhou teaching Yue boxing . Despite this , various wuxia novels and folk legends have attributed many different military and supernatural skills to Zhou . These range from mastery of the bow , double swords and Chinese spear to that of Wudang hard qigong , Chuojiao boxing and even X @-@ ray vision . Wang Shaotang 's folktale even represent him as a master of Drunken Eight Immortals boxing .