MTG - Marvel's Spider-Man Play Booster Box details:

• This Magic: The Gathering Play Booster Box contains 30 Booster Packs
  • Each Booster Pack contains 14 cards
    • 1-4 Rares or better
    • 3-5 Uncommon
    • 6-9 Common
    • 1 Land
    • Chance for Foil Showcase Mythic Rare (<1% of boosters)
      • Total of 1 Traditional Foil card of random rarity
      • Traditional Foil Land replaces the Land card in 20% of Play Boosters