Electric Dragons wield electricity with great prowess. Bright sparks race across these dragons’ bodies in a dazzling dance of light, complemented by the blindingly radiant sparks on their tails. Using their bellies and manes as stores for this electrical energy, Electric Dragons wield crackling magic, stunning and electrocuting their prey with a whip of their tail. During mating season it is typically those with the most brilliant sparks—an indicator of strength and hunting ability—that are drawn to each other.

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.

Tonitrua—whose name means 'thunder'—flies the highest clouds of any of Dragonheart's dragons yet. She flies a little higher each day, until her wings strain to hold her weight in the thin air, and her lungs burn with the cold. Then she descends again, her strong wing beats often reminding Dragonheart of thunder—hence her name. Tonitrua also has very strange and very specific tastes. For instance—for reasons no one has ever understood—her favorite dinner is ground beef and pork, deep fried in sunflower oil, mixed with ketchup, Tabasco sauce, cheese, served on a bed of sunflower seeds with a sauce of butter and motor oil.