Forged in the heart of a dying star, this legendary weapon harnesses the cosmic force of dark matter and the ability to summon black holes. It is an extraordinary blend of advanced technology and ancient sorcery, featuring a sleek blade of obsidian hues that seem to drink in light, threaded with luminescent blue veins that pulse with life. The hilt is ornately crafted with swirling celestial motifs, echoing the forms of collapsing stars, and a suspended, dark energy core at its center, emanating a haunting gravitational influence. When wielded, the weapon warps the fabric of space, creating undulating waves in reality, and with a single stroke, it can open miniature black holes to consume anything in its course. A paragon of cosmic might and devastation, it is revered and feared by deities and mortals alike.