Forged from the very fabric of the cosmos, an unparalleled weapon harnesses the enigmatic power to command dark matter and conjure black holes. This extraordinary fusion of futuristic technology and primordial magic features a sleek, midnight-hued blade that devours light, with shimmering indigo veins pulsating through its core. The hilt is intricately detailed with swirling cosmic engravings, reminiscent of dying stars, and houses a hovering core of dark energy at its center, exuding a haunting gravitational allure. Upon activation, the weapon distorts the fabric of space, sending ripples across reality, and with a single swing, can rend open tiny black holes, engulfing all in its path. A supreme artifact of annihilation and cosmic supremacy, it is dreaded by deities and mortals throughout the universe.