Fiction:The Firmament/Light Wyrm

"The power of light is willed to them, and the forces of darkness fear them. They are the embodiment of law and virtue, and there are truly none greater among dragons, both in divine power and in purity."

- Liandra Windsinger, Aesan warrior princess

Light wyrms are a rare species of true dragon who live in the land of Aelvana, where they have a long-standing pact with the local high elves and serve as their most powerful allies.

Biology
Light wyrms are quadrupedal Great True Wyrms with golden scales across their bodies, with a white-coloured underbelly. Their heads are adorned with three pairs of horns and long crests which form a hair-like shape. Perhaps the most striking feature of their bodies are the glyph-like shapes which seem to be engraved into their chests, which let out a radiant golden light whenever the dragon uses its powers. Light wyrms grow to an average of 25 meters long over the course of hundreds of years, being among the largest and heaviest of their dragon kin.

Ecology
While reports of light wyrms exist worldwide, the creatures are indigenous to the region of Aelvana, having lived there for longer than the high elves themselves. They prefer living in high altitudes, such as mountains, where they may spend their time basking in the sun. Like most dragons, light wyrms have a penchant for avarice and enjoy making hoards of valuables, though their sense of justice forbids them from simply stealing treasures from others; their hoards are generally made from spoils of war gathered after defeating evil entities.

Society
Light wyrms are famed for their inherit sense of honour, justice and valor, and are considered paragons among dragonkind for these attributes. The elves of Aelvana and the light wyrms have made a pact in ancient times, where the elves would provide the dragons with a safe home and occasional tribute in exchange for the dragons' protection and occasional use in warfare. Most adult light wyrms spend the majority of their time hibernating, conserving their energies for when they are needed, with their younger and smaller offspring serving as companions to high elves.

Abilities
Light wyrms are among the most powerful of all true dragons, possessing incredible physical prowess and virtually infinite stamina. Their mere presence is anathema to dark entities such as demons, undead and evil spellcasters, who have their powers weakened and the awesome presence of the dragon impose itself upon their souls. Their breath weapon takes the form of a radiant blast of light which incinerates the wicked, but serves as a powerful healing force to those the light wyrm see as allies.

Notable light wyrms

 * Mentiryanth - matriarch of the light wyrms, protector of Ima Themar
 * Brasassth - mount of Regent-King Vaeric the Paragon