A colossal, dark Pokémon Blastoise unleashes a formidable torrent of water, enveloped in a wet, dense shroud. Its imposing turtle form is twisted and macabre, adorned with intricate details that evoke a sense of dread. The dramatic lighting casts eerie shadows over its textured shell and menacing visage. The scene is captured in hyperrealistic, photorealistic detail, resembling a cinematic 8k masterpiece—an epic confrontation with nature's raw power, embodying the essence of horror and awe.