The Black Stone (Armor) is a dark, enigmatic material with a highly polished, glossy finish that reflects light with a subtle, eerie glow. Its surface is smooth yet features faint, intricate engravings that seem to pulse with a mysterious energy, suggesting its magical properties. The stone is roughly palm-sized, with a slightly irregular, organic shape that fits comfortably in the hand, and its deep black color is accented by occasional, barely visible crimson veins.