The Eternal Wyvern is said to have been born from the first breath of the earth itself, a primordial force that has witnessed the rise and fall of countless civilizations. It is believed to have been the guardian of ancient secrets, its scales etched with the history of cryptids from every corner of the world. Legends speak of its ability to traverse dimensions, appearing in different forms to guide those who seek to uncover the mysteries of the cryptid world.

The Eternal Wyvern possesses scales that shimmer with an otherworldly glow, capable of reflecting the light of distant stars. Its eyes are said to hold the wisdom of ages, able to see through the veil of time and space. The creature's wings, vast and powerful, can create gusts that stir the very fabric of reality. Its breath is a mix of fire and shadow, capable of both destruction and illumination.

The Eternal Wyvern serves as the guardian and chronicler of cryptid lore, ensuring that the stories and secrets of these legendary creatures are preserved across generations. It influences events by appearing at critical moments to guide or challenge those who seek to uncover the truths of the cryptid world.