The Journey Into Nyx (Black) Countdown/ Spindown D20 Dice is a collectible card game accessory featuring a marbled white and black design on a D20 dice. This plastic dice is used for various game mechanics such as counting down or spinning down during gameplay, adding an element of chance and excitement to the game. With its unique marbled design and black and white color scheme, this D20 dice is sure to be a popular choice for players looking to enhance their gameplay experience.