November 11th Update
Today across several articles, more information about Mystery Booster was revealed. We now know the set has 1,694 cards, not counting the Playtest sheet. The introductory article also confirmed that the in-store edition would not have these Playtest cards but would instead have one of 121 premium foil cards that are not otherwise in the Mystery Booster set. The in-store edition goes on sale March 13th, 2019. The announcement also includes the complete list of reprints while this article provides the artist credits for the Playtest cards.
First Look at Mystery Boosters and Playtest Cards
Today at MagicFest Richmond, Magic players got their first look at the Mystery Booster – Convention Edition. At a special sealed event players were treated to opening packs and finding some things that were familiar, and some that took the room by surprise.
While information is still trickling in, it appears each Mystery Booster pack contains a “Playtest Card”. Whether these are actual designs that were discarded or cards created specifically for this environment, they all appear as a “playtest sticker” rather than a traditional card. They are emblazoned with the words “Not for constructed play” across the bottom and have some unique and bizarre effects. Some appear to be inside jokes. The remaining cards in each pack are pulled from the history of Magic – the oldest card seen at the time of writing hails from Mirage – and each pack appears to have two rares.
This was the first card ever opened from a Mystery Booster.
— Riley Knight (@rileyquarytower) November 7, 2019
Mystery Booster – Convention Edition will be available at MagicFests and other conventions for the remainder of 2019 and through 2020, while supplies last. We will continue to provide information as it becomes available.