Chang (creature)
The chang () is a kind of ghost in ancient Chinese legend. According to the legends, people devoured by tigers turn into ghosts, who then help tigers devour other people. The idioms "" (to play the jackal to the tiger; that is, to help a villain do evil) and "" (wolves can't go without "bei‘’, tigers can't bite without "chang"; that is, without the help of others, villains can only do so much) arise from this. It is described in the "Ma Zheng" chapter of the "Legend" quoted by Tang Peizheng in the Song Dynasty "Taiping Guang Ji". Chang