Innistrad: Double Feature is a special product which contains every card from Innistrad: Midnight Hunt and every card from Innistrad: Crimson Vow (except for basic lands). Every pack contains a foil card. The set was printed in English in the USA.
Double Feature was sold in 15 card draft booster packs. Draft booster boxes have 24 packs.
Double Feature uses sequential collation.
Packs are front-facing and have common-uncommon-rare ordering. There are 8 commons followed by 4 uncommons, 2 rares, and then a final foil. The first four commons, the first two uncommons and the first rare are Midnight Hunt (MID) cards. The other non-foil cards are Crimson Vow (VOW) cards. The foil can be from either set.
|4 MID Commons||4 VOW Commons||2 MID Uncommons||2 VOW Uncommons||1 MID Rare||1 VOW Rare||1 Foil|
The Midnight Hunt commons are split into an A run, a B run, and a double-faced run. (I haven't confirmed that the B run and the double-faced run are distinct, but normally double-faced cards are on their own sheets.) The A run contains 85 cards each appearing once. The B run contains the five colorless commons. Each pack contains 3-4 A cards. If there are 3 A cards, they will be followed either by a single B card or a single double-faced card. Mathematically, 4 A packs should appear 2/5 of the time, B packs should appear 1/5 of the time, and double-faced common packs should appear 2/5 of the time. The Crimson Vow commons works the same as the Midnight Hunt commons. I'm not sure if the common pack types for Midnight Hunt and Crimson Vow are correlated; all combinations have been observed except for packs with 4 Midnight Hunt A cards and a Crimson Vow B card.
Note that a few common cards appear both in Midnight Hunt and Crimson Vow. These cards have two different versions in Double Feature, and the appropriate versions appear normally in their respective runs.
The Midnight Hunt A common run consists of 85 cards each appearing once. The choice of first card is mostly arbitrary.
The Crimson Vow A common run consists of 85 cards each appearing once. The choice of first card is mostly arbitrary.