Storm drake

Storm drakes, also called cloud dragons, wind dragons and, by some sages, Draco Cumulus Welkin, were a massive species that lived in the clouds.

Description
Storm drakes were massive, being some long. They were said to change color with both age and mood: hatchlings had silver-white scales tinged with red, and as they grew the red lightened to a sunset orange, until they were adults, at which point the color deepened to red-gold. At rest, their silvery scales had a pearlescent sheen; shimmering golden highlights marked happiness while a shift to dark stormcloud grey marked anger.

Abilities
Among their other abilities, storm drakes flew with ease despite not having wings. Additionally, they could assume a gaseous form at will in which they were nearly indistinguishable from normal clouds.

History
In 2754 NY (−1105 DR), one twilight at the end of the summer, an unidentified cloud dragon attacked Sanctuary. It was driven away, but not before it killed around 200 people and damaged many buildings.