Shadow Dragons: The shadow dragon is nocturnal, subterranean, or found on planes of dimness. The species is also independant and solitary. Only occasionally will a mated pair be found. The female lays a clutch of 5-8 eggs in a dark place. The first one to hatch will devour the others. Shadow dragons prefer to walk rather than fly, for they are poor flyers and will tire quickly.
The visual capabilities of a shadow dragon are inferior in bright light. They see normally in star light.
They are able to use 3rd and 4th level spells depending on age. They tend to know spells that deal with darkness and will shun the spells dealing with light or fire. Besides the normal claws/bite attack the shadow dragon's breath weapon is a cloud of darkness some 40 ft long and 20 ft high. This darkness not only blinds but drains the life energy of creatures caught within to a quarter of it's normal strength.
All shadow dragons have a great ability to hide in shadows (10th level thief). Due to their nature and substance they can only be harmed by magical weapons. They are immune to life drains of all type and they can't be subdued or sold.
Shadow dragons appear as wormlike dragons of lighter and darker shadows. The bat-like wings are semitransparent, as is most of the body. If someone is trying to spot a shadow dragon, the eyes, pools of feral gray opalesense, are the easiest to detect. Then, however, it is usually too late.