Photorealistic concept poster featuring two shadowy, indistinct humanoid figures in flowing dark robes shaking hands over a large, flat contract that emits a vibrant emerald green and gold glow. The contract lies on a sleek, dark surface with subtle reflections. Surrounding the figures and contract are detailed symbols of power and dark magic, including intricate arcane sigils, floating mystical runes, and entwined golden and green enchanted talismans. The background showcases a dramatic stormy night sky with thick, swirling dark clouds and occasional bright lightning strikes illuminating parts of the scene. The entire composition uses an emerald green and gold color scheme, with shadows and light enhancing the surreal and sinister mood of the agreement. A light witj the text Calvin in background.