1 of 2

A 90's or 00's scifi movie identification

I cannot recall much of the movie... I can vaguely remember that there were two groups of five (?) fighting each other. One group are good guys, and are not human-shaped; the other group are bad guys, and are human-shaped. A character in the movie uses a large ring (that has nodes that burns? cannot remember clearly...) as a weapon. Of the bad guys one is bald, dressing in black and using a green saber. The dialogue should be in English, so it might be an American movie, I guess...

Sorry for the vague details. I remember having seen the movie when I was really very young. It would be great if I can get some clues about what the movie is. Thanks in advance!