1. Astrafyre, the Starfire Sovereign: Astrafyre's scales shimmer like molten gold, reflecting the radiance of the suns. Born from the heart of a supernova, her breath is a torrent of searing plasma that can scorch entire worlds. She possesses the ability to manipulate solar energy, creating blinding lightstorms that blind her foes. Astrafyre's mere presence ignites the stars themselves, causing celestial bodies to dance in a mesmerizing display around her.  Believed to be slain by Prince Reginald.

2. Nebulion, the Ethereal Voidweaver: Nebulion emerged from the nebulous depths of a cosmic cloud, donning a cloak of swirling stardust. His body is partially translucent, allowing him to phase through solid matter and traverse dimensions. Nebulion can weave illusions and manipulate reality, bending perception to his will. With a breath, he can engulf regions in nebulous mists that induce both awe and confusion, rendering enemies lost in an astral labyrinth.

3. Auroros, the Celestial Luminary: Aurora borealis-like patterns adorn Auroros's scales, emanating shimmering lights of countless hues. She hails from the heart of a radiant quasar, granting her the power to control electromagnetic forces. Auroros can create blinding bursts of light, manipulate magnetic fields, and unleash cosmic storms that disrupt technology and communications. Her presence paints the cosmos with dazzling displays of light, inspiring awe and wonder.

4. Chrysalis, the Void Embrace: Chrysalis emerged from a region of interstellar darkness, her scales embodying the deep void itself. She possesses the ability to manipulate gravity, creating gravitational wells that can crush celestial bodies or distort the fabric of spacetime. Chrysalis can shift her form to become intangible, allowing her to slip through rifts in reality. Her roar sends shockwaves through the cosmos, warping reality in its wake.

5. Sylvantor, the Cosmic Arbiter: Sylvantor's body is adorned with constellations, each marking a celestial event. Born amidst the birth of a new star, he has an innate connection to time and destiny. Sylvantor can glimpse into the threads of fate, altering the course of events or foreseeing the outcomes of battles. His breath carries the essence of the cosmos, capable of aging or rejuvenating life forms with a single exhale.

6. Abyssion, the Eclipsed Wyrm: Abyssion emerged from the aftermath of a black hole's collision, shrouded in eternal darkness. His scales are obsidian, absorbing all light around him. He wields the power of anti-matter, able to unleash devastating waves of annihilation energy. Abyssion can create temporary voids, plunging entire regions into absolute darkness. His presence distorts reality, causing space to bend and time to warp.

7. Solarscorch, the Radiant Ravager: Solarscorch's body is a blazing inferno of cosmic flames, a result of being born within the heart of a hypernova. He wields solar flares as weapons, launching incendiary attacks that burn through even the most resilient materials. Solarscorch can harness solar winds to create powerful shields or propel himself at immense speeds. His very touch can melt solid matter, leaving a trail of molten destruction in his wake.  Believed to have been slain by Prince Reginald.

These cosmic dragons each possess unique traits born from the cosmic events that brought them into existence, making them awe-inspiring and formidable beings within the cosmos.