The Dragon King's Scale is a large, ornate scale resembling that of a mythical dragon, with a lustrous, iridescent surface that shifts between deep reds, golds, and blacks depending on the light. Its edges are slightly raised, giving it a natural armor-like appearance, and the surface is adorned with intricate, glowing runes that pulse faintly with an inner fire. The scale is thick and durable, with a slight curvature that suggests it was once part of a much larger creature, and it feels warm to the touch, as if still alive with the dragon's essence.