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.

Agason Xefo, his surname meaning "Hope" in Saurian, is a male Black dragon that has been raised by both a Yulebuck and a CB Black. Even though his appearance is that of a Black dragon, he still has acquired something special from his Yulebuck father: the Holiday spirit. He loves to make the other dragons smile, loves to gift them whatever he possesses, and just tries to make the world a better place, filled with love, cheer, and hope.