Kaligula

Kaligula was a gold dragon who fought in the Dragon Wars. He acted as the chief commander of Zhilong's forces, but after the Dragon Wars and the deaths of the Eternal Ten, Kaligula's divine mission became corrupted. After laying dominion over nearly all of Ūnun for over a decade, he was slain by a group of heroes called Esprit de Corps, and Volantes, a former student of his.

Kaligula's Reign
With the last of the Eternal Dragons gone, the title of most powerful living beings went on to their successors, Ancient Dragons. Unlike the Eternals, regular dragons cannot exist forever, but they are very long-lived nonetheless, and can amass vast power in that time. The most notable example of this is Kaligula. He was a notable leader of Zhilong’s forces during the Dragon Wars, and the oldest dragon alive after the Dragon Wars.

With his newfound position, Kaligula’s steadfast determination to stave off evil was twisted, and he became harsh and overzealous. Believing that only he could stop such an event like the Dragon Wars from ever happening again, Kaligula claimed sovereignty over all the land, taking up refuge in the Opaline Citadel, resting on the edge of the Rainbow Cordillera in the Shaihan Desert. His reign tyrannical and absolute, Kaligula treated even the smallest infractions as a besmirching of goodliness. In addition to his fanaticism for order, Kaligula also became obsessed with the power of the Eternals. One of Kaligula’s disciples, Volantes, prepared a powerful incantation to turn Kaligula to stone. With the help of adventuring group Esprit de Corps, he successfully completed it, and Kaligula’s stony remains still stand to this day perched atop the Rainbow Cordillera.