The Blood Grenade is a hyper-realistic, organic-looking explosive device with a translucent, blood-filled sac as its main body, encased in a metallic, skeletal frame that resembles rib bones. The sac pulses slightly, indicating the living nature of the contents, with veins visible beneath the surface. The metallic frame is weathered and scratched, showing signs of frequent use, and features small, glowing runes etched into its surface that hint at its supernatural properties. The grenade is designed to be thrown, with a pull-ring mechanism that is integrated seamlessly into the skeletal structure.