Ok the idea comes from all the images we get in the media of evil people with one damaged or covered eye. Just watch any horror flick. Also Ive read that some religions consider this to be one of the signs of the anti-christ or the person who will destroy all good things.
The one eyed evil has to have some basis in some facts or some historically significant events.
The one eyed evil has to have some basis in some facts or some historically significant events.