Theinen the Great Sphinx - EP1-EN001 - Ultra Rare is a highly sought-after collectible card game item from the Yu-Gi-Oh! TCG set - Yugi. As an ultra rare card, it holds a premium value among collectors and players alike. With its intricate design and powerful abilities, Theinen the Great Sphinx is a valuable addition to any Yu-Gi-Oh! card collection, making it a must-have for fans of the game.