Create a massive, menacing scythe with a jet-black handle wrapped in dark, tattered leather. The blade is impossibly long, curved like the crescent moon, and gleams with a razor-sharp, silver edge that reflects an eerie red light. Jagged notches and glowing infernal runes are etched along the blade's spine. All across the weapon—from the haft to the blade—multiple glowing demonic eyes are embedded, each varying in size, shape, and hue, constantly watching and blinking with malevolent intelligence. Some eyes weep smoke, others glow with an internal fire, giving the entire weapon a living, cursed presence. The overall design should look ancient, dark, and forged in the deepest pits of the underworld—something worthy of a demon lord or a cursed reaper.