Mystery Booster is an awesome experience with the feel of a "Chaos Draft" that uses multiple Magic Draft Boosters from different releases but bundles the cards and variety you'd experience into one amazing package. The set itself contains a whopping 1,670 reprints from across the game's history, plus 121 copies of something new and surprising—R&D Playtest cards you won't find anywhere outside of the Convention Edition. With Mystery Booster: Convention Edition's return, two of the R&D Playtest cards feature new artwork — Soulmates and Yawgmoth's Testament. There are so many cards packed into the possibilities, you could fill an entire eight-person draft and not see the same card twice.