An imposing demon clad in intricate, spiked armor intertwined with chains, emanating an aura of dark magic. His menacing form is enveloped in flowing black and crimson cloaks that ripple with a life of their own. Instead of a head, a swirling orb of fiery red energy pulses ominously, casting an eerie glow over his surroundings. His presence carries the weight and mystery of ancient legends, reminiscent of the dark lords from the worlds of epic fantasies like Lord of the Rings and the daunting realms of Dungeons and Dragons. Rendered with 4k ultra-realistic detail through the power of Unreal Engine, every facet of his menacing armor and magical presence is crafted to instill awe and fear.