Design a highly detailed sword called ‘Shadow Reaver.’ The blade is completely black, absorbing light with a matte finish, as if forged from pure darkness. Subtle veins of dark purple energy pulse faintly along the edges. The crossguard is twisted and jagged, resembling blackened, charred metal. The hilt is wrapped in deep black leather with barely visible runes etched into it. The pommel is a black gemstone that emits a faint, eerie glow, like a void radiating dark energy