Sword of Lightning: Demon Slayer

A 15-second high-octane fantasy battle scene, in warm gold and red tones: 0-3 seconds: a low-angle close-up of the protagonist's blue robes billowing in the heat, his hands gripping a giant sword with lightning patterns, the blade flashing crimson lightning continuously, lava churning and bubbling on the ground, demonic soldiers roaring and charging in the distance; the protagonist shouts, "Today, with this sword, I will subdue you evil spirits!" accompanied by the sound of sword clashes and bubbling lava; 4-8 seconds: a rapid panning shot, the protagonist spinning and swinging his sword, the blade tearing through the air and unleashing a red shockwave, blasting away the front-line demonic soldiers into ashes, accompanied by the sound of sword energy piercing the air and the demonic soldiers' screams; 9-12 seconds: a low-angle shot, zooming out and slow-motion, the protagonist leaping into the air, the blade gathering a giant arc of lightning that strikes the demonic horde; 13-15 seconds: a slow zoom-in close-up of the protagonist landing and sheathing his sword, the hem of his robes swaying slightly, his cold voice saying, "The gate to this world..." "Not to be crossed," the sound effect ends with a lingering tremor and a gradually fading wind.