High Heaven

Before High Heaven became the realm full of angels to defend Heaven. They were the largest dragon before the Dragon God had acquired the power of the Dragon Crystal. High Heavens scales looked like a combination of marble, silver, and gold. They were described as generous, noble, respectful, peaceful. This behavior was unlike most dragons, and the few like High Heaven were looked down upon. High Heaven was obsessed with Heaven, they spent the majority of their life with Heaven instead of its own realm. This led to the rebellious war "The Rise of the Dragon God". The injuries High Heaven received during the war left them crippled enough to not be able to defend Heaven, as they deeply desired. Hades offered High Heaven the opportunity to have their body transformed into a realm full of angels to defend Heaven. High Heaven accepted this offer on the condition that angels reflect the appearance of Heaven.

High Heavens scales and bones were used to create the foundations of the realm, the blood was used to create angels (in small amounts). Hades then ruled as god of High Heaven for many millennia.

"Imagine the finest pottery you've ever seen, now picture that as a place." - Anthrax