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.

Sanbi is a bit unusual for a green, or "earth," dragon, for while he does like caves, he appears to like living in old, dense forests, instead. He loves nature, and is greatly offended when someone, whether human or dragon, harms it. As a result, Sanbi fiercely defends his forest home from any who would dare to harm it.

This often puts him in direct conflict with humans, however, as they want to build homes and farms with the wood from Sanbi's forest, but Sanbi attacks them if they try. This means that the would-be villagers often send knights after Sanbi in order to "liberate" the forest from the "foul beast." Sanbi attacks them just as fiercely, and, in the end, always manages to protect his home and all that live in it.

However, if he can sense no foul intent from prospective villagers, and if they have a healthy respect for nature, Sanbi will permit them to live in the forest, given that they and their descendants never go back on their promises to never harm the forest.