INTRODUCING SET BOOSTERS. Set Boosters are the go-to if you're looking to rip open a pack and see what you get. What Draft Boosters are to drafting and Collector Boosters are to collecting, Set Boosters are to cracking packs. PRICELESS REWARDS. Magic the Gathering Kaldheim Set Boosters come with a foil in every pack (sometimes two) and wildcard slots that give each pack a chance of containing extra rares. SIGNATURE CARDS. Each Set Booster pack includes an art carda beautiful piece of borderless MTG art, sometimes featuring a foil signature from the artist. PEERLESS WONDERS. Some Set Boosters include a card from Magic's past. From the powerful to the nostalgic to the downright wild, these cards draw from the multitude of themes and mechanics in MTG history.