Vahdrak

Vahdrak is the Chaos Eldwurm whose soul supports the universe as one of the eight pillars of creation. Among the four Eldwurms that represent the four fundamental forces, he is the draconic equivalent of Chaos Knight, the Fundamental of the Strong Nuclear Force.

Physiology
Unique to Vahdrak and his fellow chaos dragons are their wings that have three red eyes. Normally covered and folded under their wings, these eyes can be opened when the dragon attempts to intimidate attackers or when using some of their powers.

Vahdrak and the chaos dragons possess unique abilities that differentiate themselves from other species. Most dragons make use of the elements or forces of nature, but these dragons have powers that would consider them as eldritch creatures. Their ability to phase out of reality and teleport short distances (via shifting between the planes) makes it difficult to land a hit on them, let alone touching these dragons. Kaden sought out these dragons for their abilities, imbuing his armor with the power of a chaos dragon.

Besides the ability to planeshift, Vahdrak seems to have the ability to darken his surroundings before releasing an expanding wave of red energy. What this attack does in practice is yet to be seen.

Lifespan
Like all Eldwurms, Vahdrak is immortal in a sense that he can reincarnate as long as there is a suitable host body for his soul to take up residence. Upon death, he finds the next oldest dragon of his type (which is the chaos dragons in his case) before filling their soulless body with his own soul. The vessels he possesses are not immortal themselves, so they all die naturally like any living creature, but it is said that they have long lifespans and grow stronger in both physical strength and their respective elemental powers as they mature and age rather than wither into weaker dragons.