Dragons are creatures with nearly unlimited life spans. They can survive for long periods of time, and no one has found a dragon that has died of old age. Adolescence is usually marked by the growth of a hatchling's wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. Once they hit adolescence, hatchlings change quickly, maturing to their full forms in only 2 years.

Dragons don't communicate with each other verbally, but they will growl to scare off predators and frighten prey. Young dragons will emit an extremely high-pitched squeal when they are frightened. To communicate, they use telepathy with each other and to speak to other creatures.

Black dragons are warriors. They are strong and capable in battles of force, but also ample magic users, capable of devastating opponents with their spells. Their bright eyes give them excellent night vision, which is why they generally hunt during the night.

Nyghtmare is a large and frightening male black dragon. It was obvious from the start that he was different from the other black dragons because of his sheer size and muscle mass. Despite his fearsome appearance, this dragon is not without his sensitive side. He is mated to the glorious gold Matriarch of the cave, and is the father of two gorgeous gold dragons. Oddly enough, he takes interest in the young of the cave and enjoys teaching them strategies in their play fights that will evolve into real maneuvers as they age and learn. His prowess in battle is unmatched, and the scars of many long forgotten skirmishes only add to his nightmarish appearance.