Stone Dragons have a tough outer covering made of a stone-like material. They eat rocks, using the minerals they contain for nourishment and to keep up their stone outer shell. They rarely move, and are the heaviest of all types of dragons. Although they have wings, indicating flight ability, no one has ever seen a stone dragon flying.

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.

Hard headed dragons like Calibur are really tough to the in and out. Hard golem warriors that protect the Terranian Nation. Calibur was once a weak and underestimated dragon in their army, he usually fail all the time. Being clumsy in his ways he sometimes left their army disappointed and worthless. But he looked up to his father, who was a great fighter from their clan and found a new dimension of hope; he enhanced his skills in controlling the earth's surface and made his powers stronger than ever!

When he got back to their army the other dragons babbled and teased him, but they proved them wrong. When an intruder attacking the Terranian Nation blow a ball of fire he blocked it with his large stone pillars that nobody ever seen it. He was praised by others and was called in a new title: The Hard One.