The Coatani are a descendant of one of the original 8 Dragon species of Laramidia and Appalachia. They and another dragon are both divergent species of dragons who embodied Sky, Wind, Air, and Sound.

The Coatani are often mistaken for a species of serpent but they are a Dragon like the others which have convergently evolved Serpent-like bodies for living mainly in the trees and flying through narrow gaps. They were found living on an island far to the south isolated from the main continent where they developed differently from their mainland relatives losing their need for legs in exchange for wings. They have a venomous bite, it's not strong enough to be deadly to other dragons but they still would not want to get bitten by one as their venom can cause Pain, swelling, and paralysis.

Their magical ability allows them to produce fog and clouds with magical effects like creating Dense solid barriers, Put creatures to sleep with vivid dreams, cause emotional stimuli like Fear or Love, or Create localized weather effects like Storms, Snow, and Incendiary Clouds.

They have recently been reintroduced to mainland Appalachia and interacting mainly with the Xerathani