Embrace the Power of Pure Black Obsidian. From tricking rock trolls to dueling with a powerful shaman, the life of a dungeon crawler is filled with enough thrills to keep you wanting more. Just like in the real world, an adventurer needs the right tools to get the job done, and in most cases, their campaign may depend on it. Giving your character plenty to boost to back them in their loftiest obstacles, this black obsidian raised holographic dice set is a treasure that keeps on giving. Perfect for Your Adventures. The Black Obsidian used for the dice is directly sourced from volcanic lava deposits in Argentina, Canada, Chile, and Ecuador. The dice are embellished with holographic numerical numbers whose colorful shine will surely mesmerize your DnD buddies.