A haunting female Fathomless warlock from Dungeons & Dragons 5.5 floating above a raging black ocean during a violent supernatural storm. She is completely soaked, her pale wet skin glistening in lightning flashes, her dark hair drenched and tangled, clinging to her face, neck, and shoulders, and her deep dark eyes staring with cold abyssal power. She wears a heavy wet dark warlock robe, the fabric saturated with seawater and wrapped around her like drowned ceremonial clothing, decorated with deep-sea occult symbols, abyssal runes, barnacles, black pearls, coral shards, kelp-like patterns, and faint tentacle motifs from the dark depths. With one arm extended, she fires Eldritch Blast at an unseen enemy outside the frame, a violent beam of green-blue, violet, and ghostly white magical energy tearing through rain, mist, and sea spray. Behind her, a medieval sailing ship is sinking into enormous waves, its mast shattered, sails ripped, hull broken, lanterns drowning in the storm, surrounded by black water and monstrous shapes moving beneath the surface. Dark nautical fantasy, eldritch ocean horror, abyssal warlock magic, grimdark atmosphere, cinematic composition, ultra detailed, realistic painterly style, dramatic lightning, deep shadows, violent waves, rain-soaked clothing, terrifying oceanic power