Kaldheim Collation

Kaldheim is a large set with 101 commons, 80 uncommons, 64 rares (11 of which are double-faced), 20 mythic rares (5 of which are double-faced), two variations of each basic snow-covered land, and 10 extra common lands that can replace basic lands in boosters. This follows the example set by Zendikar Rising with the addition of the extra common lands. Foil cards are included in booster packs with advertised rate of 33% of boosters. The set was printed in English in the USA, Belgium, and Japan.

Kaldheim was sold in 15 card booster packs (which contain an additional ad card or double-faced card placeholder). Booster boxes have 36 packs.

US Pack Anatomy

The US printing uses sequential collation with C1/C2 common collation in the style of Zendikar Rising's US printing.

Packs are front-facing and have common-uncommon-rare ordering followed by a snow basic land or common tapped dual land and an ad card. There are 10 commons, 3 uncommons, and 1 rare. If there is a foil, it will displace a common and appear after the land.

Packs are evenly split between C1 commons and C2 commons. Non-foil C1 packs have 2-3 A commons followed by 2 B commons and 5-6 C commons. Non-foil C2 packs have 3-4 A commons followed by 2-3 B commons and 3-4 C commons. (I haven't observed 3A + 2B.)

When a foil appears in a pack, it will displace a common card. The majority of foils appear in C2 packs. C1 foil packs are be 2A+2B. (Unlike Zendikar Rising, no 1B packs were observed.) C2 foil packs can be 4A+2B, 3A+3B, or 3A+2B.

The uncommons are divided into an A run and a B run. Each run has 40 distinct cards each appearing three times. Half of packs have three consecutive cards from the A run and the other half have three from the B run. For cards that have showcase variants, one of the three copies in the run is the showcase variant. Note that under a single pack model, there is no reason way to choose which run should be called "A", but the runs are disambiguated by box collation.

The land slot has a common tapped dual land 5/12 of the time.

Placeholder cards appear about 20% of the time and ad cards appear otherwise. These are on different sheets.

Common Runs

The A common run consists of 33 different cards each appearing twice. These cards are white, blue, and red (appearing in that order). The choice of first card is mostly arbitrary.

The B common run consists of 22 different cards each appearing three times. The cards alternate between black and green. The choice of first card is mostly arbitrary.

The C1 common run consists of 27 different cards each appearing twice plus Funeral Longboat, the short-printed common. It includes cards of all colors and colorless cards. The choice of first card is mostly arbitrary.

The C2 common run consists of 18 different cards each appearing three times plus Funeral Longboat, the short-printed common. It includes cards of all colors and colorless cards. The choice of first card is mostly arbitrary.

Uncommon Runs

The A uncommon run consists of 40 different cards each appearing three times. For cards that have a showcase variants, one of the three copies is the showcase variant. The choice of first card is mostly arbitrary.

The B uncommon run consists of 40 different cards each appearing three times. For cards that have a showcase variants, one of the three copies is the showcase variant. The choice of first card is mostly arbitrary.

Land Run

The land run contains each variation of each basic snow land seven times and each common dual land five times. The choice of first card is mostly arbitrary.

Token Run

Most of the marketing cards in Kaldheim have a token or emblem on the front face. In addition, there is a card that has an advertisement for MTG Arena on the front face. They are printed in a 121 card run with items appearing different numbers of times.

Token Rarity
Bear × 1	Cat × 1	Demon Berserker × 1
Dragon × 1	Kaya the Inexorable Emblem × 1	Koma's Coil × 1
Shapeshifter × 1	Shard × 1	Tibalt, Cosmic Impostor Emblem × 1
Tyvar Kell Emblem × 1	Giant Wizard × 2	Troll Warrior × 2
Angel Warrior × 3	Bird × 5	Icy Manalith × 5
Replicated Ring × 5	Spirit × 5	Zombie Berserker × 5
Foretell × 6	Elf Warrior × 11	Human Warrior × 11
Dwarf Berserker × 12	Treasure × 15	Arena Ad Card × 24

Belgian Pack Anatomy

The Belgian printing uses sequential collation with simple two-run 101 common collation.

Packs are front-facing and have common-uncommon-rare ordering followed by a basic snow land or tapped common dual and an ad or placeholder card. There are 10 commons, 3 uncommons, and 1 rare. If there is a foil, it will displace a common and appear after the land.

Each pack contains six cards from the A common run followed by four cards from the B run. Foils can displace a card from either run.

Common Runs

The A common run consists of 60 different cards each appearing twice plus Funeral Longboat, the short-printed common. The choice of first card is mostly arbitrary.

The B common run consists of 40 different cards each appearing three times plus Funeral Longboat, the short-printed common. The choice of first card is mostly arbitrary.

Japanese Pack Anatomy

The Japanese printing uses sequential collation with 112 card sheets (which is the usual for Japan). Probably the sheets are 14 × 8.

Packs are front-facing starting with the ad or placeholder card and a snow basic or common tapped dual, then the rare, 3 uncommons, and 10 commons. If there is a foil, it will appear between the basic land and the rare, displacing a common.

There are 3 common runs: A, B, and C. A contains 27 distinct cards, and B and C each contain 37 distinct cards. Each pack gets 2 to 3 cards from A followed by 3 to 4 cards from B and 3 to 4 cards from C. This means packs are either 2-4-4, 3-3-4, or 3-4-3. The exact ratios may depend on the way foil collation works.

Foils displace a common. As far as I've seen, there will still be at least 2 A commons, 3 B commons, and 3 C commons, and I have seen all three possibilities for common distribution given a foil.

Common Runs

The A common run consists of 27 different cards each appearing four times (which would leave 4 fillers on a 112 card sheet). The cards are mostly blue. The choice of first card is mostly arbitrary.

The B common run consists of 37 different cards each appearing three times (which would leave 1 filler on a 112 card sheet). The cards are mostly black and green. The choice of first card is mostly arbitrary.

The C common run consists of 37 different cards each appearing three times (which would leave 1 filler on a 112 card sheet). The cards are mostly red and white. The choice of first card is mostly arbitrary.