A mysterious and fantastical beast, elegant and ethereal, with a lithe form glowing softly like a starlit sky, its skin adorned with flowing nebula-like patterns. It possesses enormous wings, each feather crystalline and translucent, reflecting faint rainbow hues. Its eyes, deep and amber-like, exude an air of ancient wisdom and mystery, as if holding an untold legend. Its slender, powerful limbs end in claws etched with rune-like markings. Roaming through a misty forest, it is surrounded by glimmering lights that dance like fireflies in its wake. This creature is a living wonder, embodying the magic and secrets of a mystical world.