Envision a formidable and sinister dark Pokémon Blastoise, resembling a colossal turtle-like monster, unleashing a torrent of water with immense power. Its form is wet and sleek, with an ominous and twisted appearance that borders on the macabre. The design is intricate, filled with elaborate details that evoke a sense of awe and dread. Dramatic lighting casts deep shadows, enhancing the eerie atmosphere, while the creature is rendered in hyperrealistic, photorealistic style, capturing every nuance with cinematic precision in ultra-high definition 8k resolution.