Mjolnir is a legendary war hammer with a photorealistic design, featuring a large, block-shaped head made of dark, weathered metal with intricate Norse runes engraved along its sides. The handle is wrapped in aged leather strips for grip, showing signs of wear from countless battles. The hammer's head emits a subtle glow, hinting at its divine origins and immense power, with lightning-like energy crackling faintly across its surface.