When Water Dragons mature, they lose the ability to survive on land, entering the water permanently. They are adept swimmers and eat whatever fish are in the lake they live in. They tend to inhabit the same lake for their entire lives, although a few live in the ocean and swim all over the world.

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.

Coresle lives only in the water, preferably cold water. Her nest is at the depths of the ocean in a crystallized cave where she raises her young and guards her horde of treasure. When she swims she'll be the cause of a giant Tsunami if you run into one for she can control rain and currents of the water. Occasionally, Coresle will destroy ships that make there way during the storms especially if they're in on her hunting grounds. She loves to eat, fish, Crocs, and other marine animals like that.