Visualize a futuristic version of Etrigan from DC Comics. The character is depicted as a demon with an imposing and powerful presence. His appearance is a blend of his classic demonic features and futuristic armor. The armor is robust and has a fiery design, with glowing accents that hint at his infernal origins. His face retains the traditional demonic aspects, such as pointed ears and fangs, but with a modern twist. He might have a high-tech collar or other elements that suggest a blend of magic and advanced technology. His posture is menacing and dominant, showcasing his strength and mystical powers. The background is a blend of a fiery hellish landscape and a futuristic environment, with elements of both brimstone and advanced technology. The color scheme includes dark reds, oranges, and metallic tones, highlighting his nature as a demon from the future.