Cassare Dragons are known for their magic-deadening abilities. Though not a conscious ability, a large field surrounds the dragon through which magic is passively nullified. This field is strongest near the dragon itself, and falls off with distance. The absence of magic often makes other creatures avoid them, though some will have the opposite reaction and seek refuge instead. It has also caused them to be hunted, as though the field is severely weakened once dead, their bones and scales retain some of the effect. Possessing such an item is considered a necessity by those who expect to face hostile magic.

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.

Toxic Asset is the only cassare in the valley, and he is on the blacklist of many groups of magic-loving dragons like the geminaes, magis, and scripts. The arsani clique won't consider even communicating and stay far away. Toxic Asset is pretty sure he can use magic, though he can't figure out how to turn his ability off or find a magic nullifier nullifier spell for everyone else. It's not terribly fun when many nonmagical dragons and humans come for his hide.