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.

Hem usually guards her Clan's scroll archives; her magic-deadening abilities are useful here, as there's not much reason for anyone to use magic in the library. Sometimes, if needed, she may be moved to guard a different post. Her personality is very fitting for a guard, in that she is almost entirely lacking one; others find it hard to get to know her even if they try, and she seems rather simple, preferring to stand her post silently and robotically. When trouble arises, however, she is swift to do her duty and do it well.