return ravnica booster box Magic The Gathering to 36 Packs Sealed Wizards of the Coast event decks 1x Return to Ravnica: Japanese:

Cards like Army of the Damned and Damnable Pact are begging to be copied with Anhelo, the Painters ability, and the alternate commander, Parnesse, the Subtle Brush, lets you pass the copied spells around the table and influences your opponents to target each other with them

After finishing them, a new set of Advanced Missions will be available, rewarding you with another 120 free Pack Hourglasses in Pokemon TCG Pocket

They don't lose any cards they already have, and any powerful Spell that gets milled can get fetched back with Magician of Faith a much better early Effect Monster

Also, I could see both Dromoka's Command and Dragonlord Atarka being excellent additions to this deck: the former as a versatile card that can also serve as removal, the latter as a game-changing card that can also serve as removal

Past MTG Secret Lair decks have been sold by Wizards of the Coast for $150, but have later gone for a boatload on the secondary market, so they're now prime targets for scalpers