The Quantum Riddler Borderless Edge of Eternities Mythic Rare Card #305 in Mythic rarity is a highly sought-after collectible card in the Magic: The Gathering game. This Blue creature card, illustrated by Cacho Rubione, features a Sphinx character with 4 attack power and 6 defense toughness. Manufactured by Wizards of the Coast in 2025, this standard-sized card is made of card stock and is in English language. With its unique borderless design and excellent condition, this card is a valuable addition to any Magic: The Gathering collection.