As always, Kaldheim comes in Draft Boosters. These are by far the best way to play any Limited format. This is the classic Magic booster, and the contents are pretty straightforward:
1 Rare or mythic rare
1 Snow land (basic or dual land)
1 Token/ad card
1 in 3 packs have 1 common card replaced by a foil card of any rarity
It's also possible that one or more of these cards has been replaced by a showcase or borderless card, exciting alternate versions of Kaldheim cards.