Tercorn Dragons are typically friendly and peaceful in nature. Most individuals are eager to help, and show highly-cooperative behavior. However, they can easily feel disrespected by those unfamiliar with their customs. While the three long horns protruding from their heads may be fearsome, they serve mostly to scare off aggressors, and if an attack is deemed necessary for self-defense, it is never deadly in intention. Tercorn Dragons are quite social and active within their aquatic environment, but rarely emerge on land if not caring for unhatched offspring in hidden coastal caves.

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.

Corriviv is a giant coral wyvern. At least, that's what Wyvekex and Azucorr say, and she sees no reason to argue, because secretly she knows they are merely tiny tercorns. All three have been offended by hominids who don't understand their sensitive and highly advanced culture and refuse to explain what it is about their culture that the humans don't know how to be polite about because of it. From observations, the only thing the three dragons to is go hunting for fish together and then cook them over pyro mana and have casual barbecues on the seafloor. Asking how this is more sophisticated than human behaviour is offensive to their refined, sensitive culture. Corriviv can never be found with other tercorns, or really anywhere without the two coral wyverns following her around, so it is unclear how she would behave without their influence.