Bright-Breasted Wyverns are a breed of dragon easily recognized by their bright red markings. They are a small breed, only the size of a full-grown man. However, they have developed poisonous barbs on their feet to make up for their size. Their coloration is used to warn off potential predators of the danger, and is also used to attract mates. They are very social, and can often be seen preening in large groups.

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.

Poisoned Flame has a strange obsession with all things that are toxic and corrosive. If a Turpentine dragon walks by, she will flick it with the end of her tail, curious to see how the turpentine causes her to feel a burning sensation in her scales. She is also the mate of a black Sweetling by the name of Poisoned Nightrose, a dragon who likes to create candy using a poison that only Valentine's dragons are immune to. Her attitude is rather snarky and aggressive, and she is sometimes too quick to attack other dragons with her poison barbs, making her a generally disliked dragon in her cave.