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.

Grievous is a Separator dragon with a hate for Jeedi. He is obsessed with beating Obi-Wan senseless, as well as defeating Asajj whenever possible.

Grievous thinks that Obi-Wan is insane and that Windu is stupid, and he will loudly proclaim that Anakin, the 'Chosen Cookie', is a stuck up weirdo that is fixated with winning everything.

Grievous really hates Count Dooku, as well as the Siith Lord's love for fine dining. He will sometimes even call him 'Count Dookie', a name that Autumn, Grievous's companion and friend, had given Dooku a while ago.

Altogether, Grievous is funny, brave, and most definetely not the Chosen Cookie.