Green Dragons are also sometimes called “earth” dragons. They usually live deep within caves, and have power over the earth. They are capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons 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. In Galsreim, dragons and humans coexist peacefully.

Rocks of tumble was rejected as an egg; past owners had tried to destroy him and egg shell was left with horrible marks. When he hatched he was aggressive and didn't trust anyone. Only his adopted mother would calm him from fright of being killed same with his owner who took him in when no one else wanted him. Now he ties his best to help eggs hatch and won't let an egg be killed or mistreated.