Split Dragons use their sharp teeth and wings to hunt large animals and rarely eat plants. They are intelligent dragons who enjoy mental challenges, preferably alone; Split Dragons are normally solitary except during mating season. When mating, many dragons come together in a group to raise their eggs and hatchlings. These groups tend to be very noisy—reminiscent of a thunderstorm—and last only until the hatchlings are capable of surviving on their own.

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.

Two-headed dragons are unique enough to deserve a separate classification from ordinary dragons. They have two necks, two brains, two mouths, but one stomach and one main body. The two heads usually work together, but there are times when they will fight each other, snapping back and forth. Their unique anatomy prevents them from breeding with single-headed dragons.

Although he has two heads, they act remarkably similar, and have little differences. The two heads react as one, and speak as one. He is often called "The Silver Warrior". Arthius would often clad himself in the cave's finest armor. It was built from the finest metal, colored a platinum white, and lining the armor was silver. Metallic claws were forged from the fires of the Cave's leader, and given as a gift to Arthius. From this, Arthius became cocky. He would be too arrogant to see that some battles weren't worth fighting, and by the end of the fight, he would be left standing, his ego pushed higher and higher. He was even as so bold as to call himself the heir to the cave leadership. Though none dared to challenge him on that. Blinded with his own pride, Arthius has found in necessary to be the absolute best in the cave. Anyone who opposed him, he would take down.