Magi Dragons are, as their name suggests, primarily magic users. They rarely use physical forms of attack. They eat anything they can kill, which is almost everything. They won’t kill unprovoked except when hunting, although they may kill humans if in danger. Their strong magic makes them one of the most feared breeds of dragons.

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.

Arost's time at Magehaven Island was devoted to finding ways to make fortune-telling more accurate. Oracles might be able to get by with cryptic pronouncements, but most ordinary dragons could benefit from a little more precision. By building on past experiments, Arost was able to create herself small pocket realities to test various permutations of time, place, and ingredients in order to determine, for example, how to cast bones to best predict the future. She was one of the first to foresee Magehaven Island's fall, but one of the last to leave, as she refused to abandon her friends and colleagues.