Hisoka, Meruem, battle scene, dark fantasy world, eerie atmosphere, Hisoka's intricate black and purple armor, menacing sharp claws, glowing red eyes, Meruem's towering physique, intimidating aura, Nen abilities, explosive fight, dramatic lightning bolts, intense close-up shots, dynamic composition, high-contrast lighting, dark misty background, ancient ruins, destroyed trees, shattered rocks.