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.

Jules loves to fly up to dragons whose flight is dependent on magic. This has given him a bad name among candelabras, astrapixenos, shimmer-scales, and others whose aerial abilities are exclusively supernatural. However, misfits and other tricksters love him. Rumour has it that Jules once maimed a celestial by forcing it into the material plane with his antimagic while it was passing through a tree, but this remains unconfirmed. He is generally known as a pain in the tail, but there have been a few redeeming occasions when a particularly powerful dragon or sorcerer has threatened Lloyprij. Those times, Jules rounded up a number of misfits and led an obnoxiousness assault to annoy and embarrass the would-be tyrant out of town.

When not making havoc, Jules runs an alchemist's supply shop. His antimagic prevents him from doing alchemy, but it also stops unintentional reactions from the dust and spillage.