Magic The Gathering Mystery Booster Box (Convention Edition 2021)

Magic The Gathering Mystery Booster Box (Convention Edition 2021)

Each booster box contains 24 Mystery Booster Convention Edition 2021 Booster Packs. Each convention-exclusive Mystery Booster pack will contain fifteen cards: fourteen from the gigantically awesome main set, and one Research and Development Playtest card. Please keep in mind that all Playtest cards will have the following warning on them: TEST CARD - Not for Constructed Play.