Magic the Gathering - Mystery Convention Edition Boosters (2021)

What's life without a little mystery, eh? Will you get an awesomely powerful card? What will your test card be?!

Each convention-exclusive Mystery Booster 2021 pack contains 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.