Storm-empowered dark Pokémon Blastoise, a colossal turtle-like creature, unleashing a torrent of water with immense force, drenched and formidable, featuring an intricate and sinister design. The scene is dense and twisted, evoking a macabre atmosphere. Elaborate details define the creature's shell and features, with dramatic lighting accentuating the hyperrealism. The photorealistic, cinematic composition captures the terror-inducing moment in stunning 8k quality, creating an immersive experience in a 9:16 aspect ratio.