I can't say I know what your thing was.
I have wondered, and this is the type of question HJ would know the answer to, is about this movie I saw long, long ago as a wee child.
There was a group of people trying to accomplish some mission. Mid evil style shit. One guy had a weapon like Blade's chakram, that not only was bladed, but it either shot fire or blocked fire. I forget. They were also traveling with an old man or something that turned bad and like had black eyes or some shit, I don't remember.
Typing random shit into google, I think the movie might have been 1983's "Krull"
Also, who remembers Little Nemo: The Dream Master?