Black Dragons are warriors. They are strong and capable in battles of force, but also ample magic users, capable of devastating opponents with their spells. Their bright eyes give them excellent night vision, which is why they generally hunt during the night.

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.

W Galidor is the third member of Wyrda's councilor group. He represents the water. How could a Black dragon be named after this element has its explanation. Galidor's ability of adaptation has attributed him with this nickname. As the water, that can take any form it is given, he just flows with the current of events, and seems to be able to find solutions for almost every problem he encounters.

He has a friendly rivalry with Bionicle. They like to tease and compete against each other for everything, though they consider themselves to be non-biological brothers. As the red, he is cold and inexpressive to outsiders, but between his closest ones he is a joker. And as any Black dragon, he has a big crevice for war and darkness, and is by far the most violent member of the council. Bionicle gave him another nickname after this, 'Ocean', because even if the ocean seems to be calm, great waves can form from one moment to another, devastating everything they get grip of.