Andvari's Hammer is a formidable weapon with a semi-realistic Norse mythology aesthetic, featuring a large, angular head made of dark, weathered metal with intricate Norse runes engraved along its surface. The handle is wrapped in aged leather, providing a secure grip, and the hammer's overall design is both functional and ornate, with a slightly asymmetrical shape that suggests ancient craftsmanship. The head of the hammer glows faintly with a mystical blue light, indicating its magical properties and connection to the dwarven smith Andvari.