The only defining thing I remember about this movie was it involved a character posing as some kind of undead knight/monster. The helmet had broken horns and glowing red eyes. If I remember correctly, the final fight between the good guy warrior and villain takes place in a hall with several suits of armor.
Wizards (1977)?
http://www.imdb.com/title/tt0076929/?ref_=fn_al_tt_1
No, it wasn’t that. I wouldn’t be surprised if this movie was straight to VHS. It had an older/grainy quality to the animation. I’d place it probably 70’s/80’s. Sorry, I really wish I could recall more details. It’s been bugging me for some time lol.
The Black Cauldron (1985) https://www.youtube.com/watch?v=moH836kyAqw