Create an image of a dark and desolate battlefield illuminated by violent flashes of dark magic and radiant light. The brave knight, clad in gleaming armor, stands in a dynamic and heroic pose, wielding a sword that shines with a brilliant, holy light. Facing the knight is the Malevolent Harbinger, a spectral figure cloaked in swirling shadows, with glowing runes etched into his twisted visage. The Harbinger's dark energy pulses around him, and his malevolent presence creates an ominous atmosphere. The battlefield is scorched, with jagged rocks and remnants of past battles littering the ground. The sky is filled with swirling dark clouds and bolts of lightning, creating a dramatic and intense backdrop. The scene should capture the fierce and epic struggle between the knight's light and the Harbinger's darkness, with a strong sense of motion and energy, emphasizing the confrontation between the two adversaries.