Cryosis Draconis

Cryosis Draconis is a frost dragon. It breathes frost, and is impervious to cold. Those that remain live on self constructed floating islands high up above the planet Nyx. Their islands require weekly maintenance, or they will melt away, losing the dragon its home after which they need to create a new one by freezing the humidity in the air and adding onto the chunk created from that. They live on many different arctic planets, but mainly inhabit Nyx.