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.

G'renn was born at the start of winter. A few days after his egg was laid, it had somehow rolled out of the nest and into the frost-coated fields. This left it vulnerable for a full night in the cold until his mother (Halloween Horror) returned from hunting to find his egg there. Luckily, he had not died. But this dragon would forever be scared of the weather. Also because of this, his scales retained a tiny metallic quality that slightly resembled a coating of ice.