MDG Individual D20 Elixir Liquid Core Dice, Vanishing OilElixir dice are infused with glittery liquid cores that swirl when rolled. This d20 is handcrafted and polished to keep its beautiful sharp edges. When the liquid core is molded into the die, the heat from molding creates a small bubble in the liquid core. Since the bubble in the liquid is constantly moving, we have not seen an effect on rolling. From our innovative Kickstarter, Elixir dice are infused with glittery liquid cores that swirl when