A menacing demon clad in intricate black and red armor, his form shrouded in flowing cloaks of the same hue, stands tall in a mystical landscape reminiscent of Middle-earth and the realms of Dungeons and Dragons. His head is an ominous, swirling sphere of fiery red energy, pulsating with otherworldly power. The demon's chains clink ominously as they hang from his armor, adding to his fearsome presence. With dark magic crackling at his fingertips, he exudes an aura of ancient malevolence, as if he were an unholy warden of a forgotten era, brought to life in breathtaking 4k detail, an unreal entity stalked by shadows.