The Magic The Gathering Secret Lair Dandan Deck 2026 Chaos Vault is a pre-sale event exclusive collectible card game deck featuring the color blue and using cards from the Secret Lair set. This custom deck, manufactured by Wizards of the Coast, includes cards like Accumulated Knowledge, Dandan, Memory Lapse, Avacyn's Pilgrim, and Vision Charm. As a creature, instant, sorcery, enchantment, and land card deck, it is designed for players aged 13 and up who enjoy the Magic: The Gathering game.