Release date: 1982
I’m not too sure what happened with this one, but I think I can guess. I saw a version on YouTube that was horribly dubbed and the director and cast were all given occidental names. These names are replicated on IMDb and I assume are those who dubbed the movie (if they aren’t just randomly made up names).
For Hong Kong movies I often check the Hong Kong Movie Database as well as IMDb. A search for Ninja the Violent Sorcerer actually leads to the Taiwanese film The Stunning Gambling directed by Chung Ching-Woon and says that Ninja is actually partially that film. I suspect that Godfrey Ho directed the supernatural parts featuring the ninja and kyonsi and cut them together with scenes from The Stunning Gambling. Like many such cut and paste movies, for instance Robo Vampire, this falls flat (though not as much as Robo Vampire).
|an undead taoist|
Still it is mildly entertaining in a masochistic way 2 out of 10.
The imdb page is here.