Cinematic 16:9 ultra-detailed fantasy battle trailer in the mythical realm of Aetherion. Massive floating islands of glowing crystal and ancient moss-covered ruins drift through endless golden skies. A colossal ancient dragon named Eldrath leads a desperate alliance of silver-armored elves and griffin riders to defend the Heart Crystal against the Obsidian Sorcerer Lord Vespera and his legion of shadow-wreathed demons. Explosive wide aerial shots and dynamic tracking camera capture the chaos: lightning storms, glowing arrows, griffin dive-bombing, and swirling black vortexes. Emotional close-ups of Eldrath and the half-elf sorceress Lirael as they combine powers in a blinding supernova of light. Hyper-realistic cinematic lighting, dramatic color grading, 8K, film grain, in the style of Guillermo del Toro and Peter Jackson.