A medium shot captures a colossal skeletal dragon, the Bone Dragon — King of the Flying Ruins, hovering menacingly in a desolate, cracked wasteland under a stormy sky. Composed entirely of blackened ivory bones etched with ancient glowing crack patterns and red-black curse marks, it exudes bone-chilling dread; azure spirit flames leak from joints, pulsing rhythmically, while its crowned skull features multiple rear-curving horns, a massive nasal horn, dual-jawed maw with inner fangs, and blazing cyan flame eyes. Its armored ribcage encases a floating cursed core heart, jagged spine blades, membraneless bone wings with spectral shadow webs and spear-sharp tips, muscular forelimbs with obsidian-clawed gauntlets and spiked joints, powerful hind legs, and a long whip-tail ending in a trident fork. Textures reveal steel-hard, dry bone surfaces with metallic grind sounds implied in motion. The atmosphere conveys regal majesty fused with graveyard eeriness, embers and black smoke swirling amid ground fissures and awakened undead whispers, in anime illustration style with great quality,best quality, dramatic chiaroscuro lighting, and ethereal glows.