The Qianwanjin

The blue dragonborn refer to both themselves and their country as Qianwanjin, "the Countless Gold." The obvious mercantile implication is somewhat self-deprecating, as the majority who use the term, the majority of the blue dragonborn, themselves, are poor, serving merchant princes, many of whom vie against one another for supremacy over the entirity of the people. The name also naturally refers to their habitat and the seemingly endless expanse of dunes that ultimately terminates in the far west, where the Eladrin make their residence supported by complex sorcery.

Travel across the desert, either to the distant west, or more simply between the north and south, has made the Qianwanjin extremely wealthy, though that wealth rarely sees the hands of most of its people. The internal schisms within the Qianwanjin have allowed the red dragonborn to maintain trade relations with some tribes while openly warring agains others, while the sheer numbers of their people and the harshness of their terrain have kept them an impossible obstacle to the red advance.

The blue dragonborn are welcoming of outsiders and travelers, and their traditions insist upon certain measures of hospitality even to be afforded to enemies--but the degree of welcome is often reliant upon the evident wealth of their guests.

Among the upper ranks of blue dragonborn society, sorcery is more common than among any other of the states due to their occasional traffic with the Eladrin and lands beyond. What magic makes its way into Longguo is usually filtered through the Qianwanjin, and they are fiercely covetous of new and powerful arcane secrets.

The Blue Ur-Dragon is dead, the only one ever to be slain. The precise detail of his death are mysterious, but what is known is that 24 red dragonborn, with the help of the Fengsha, the Brass Ur-Dragon, engineered his demise. These events, in the year 2419, spelled the end of the last cohesive Empire of the Dragon Throne, inciting the Qianwanjin to rebel against the rule of the then current emperor, Zhao Shenghuo, and commit a campaign of genocide against the brass dragonborn in revenge.

The organ in most dragonborn that has developed to allow them to release a breath weapon substance has, in the blue, become a powerfully muscular lung, allowing them to emit a burst of air at such a speed as to be booming and concussive. This breath weapon deals (Stamina)k1 damage and stuns the target, and the attacker makes a contested roll of Air against the target's Earth. If the attacker succeeds, the target is thrown up  to 5 x the attacker's Air Ring feet (attacker's choice) and knocked prone.