Dark green dragons, once they mature, appear to become an entirely different species. However, this isn’t true. Rather, they burrow underground and get nutrients from their vines. These vines are sometimes referred to as Dragon Grass. These dragons are very violent, and will use their vines to capture, kill, and eat anything that moves, as well as nearby plants. Luckily, their range is limited and they cannot use magic. Dark green dragons tend to be easy to spot since they usually kill all plants around them and thus are usually surrounded by a large clearing.

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.

VineKarasu was stolen from the dragon caves and was carefully raised by the Shadows Karasu herd's dragon raisers. Despite this attention, she turned out much like other vine dragons in that she does not tolerate humans or other dragons around her. Instead of seeing them as friends, she sees them as prey. The only time she will allow other dragons to approach her without seeing them as such is when she is in the mood to breed and even then, she'll only allow males. She is named Vine for her vines and Karasu indicates what herd she belongs to.