This is a sealed Strixhaven: School of Mages Draft Booster Box released by Mamic the Gathering.
 
This box contains 36 Strixhaven Draft Boosters (540 cards total), each with 15 Magic cards and 1 ad/token or Helper Card (for use with Double-Faced Cards).

Each pack contains 1 Mystical Archive card (Uncommon, Rare, or Mythic Rare), 1 Lesson card (Common, Rare, or Mythic Rare), 1 Rare or Mythic Rare, 3 Uncommons, and 9 Commons. A traditional foil card of any rarity replaces a Common in 33% of Strixhaven Draft Boosters, and a traditional foil Mystical Archive Mythic Rare can be found in <1% of packs.