It's a simple question with a surprisingly consistent answer across recent expansions.
The standard pack breakdown
A modern Pokémon TCG booster pack contains 10 cards, plus a Basic Energy card and a Pokémon TCG Live code card tucked in alongside them. Of the 10 cards, the mix typically runs through several Commons, a handful of Uncommons, and at least one card of Rare rarity or above — every pack is guaranteed that minimum.
Where the guarantee sits
The Rare-or-better guarantee is a floor, not a target. Most packs land right on it with a single Rare, while Double Rares, Illustration Rares and the rarer secret rares are considerably less frequent. That's the entire basis of pull-rate discussion in the community — a guaranteed slot doesn't mean an even chance of hitting the best card in it.
Scaling up
A Booster Bundle packages 6 of these packs together with no extras. A full Booster Box (also called a Booster Display) contains 36 packs — the format serious collectors buy when they want the best statistical shot at a specific card, since more packs means more chances at the guaranteed Rare-or-better slot landing on something valuable.
We stock both formats for the current Mega Evolution sets: Pitch Black Booster Bundle and Chaos Rising Booster Box.
Frequently asked questions
How many cards come in one Pokémon booster pack?
10 cards, plus a Basic Energy card and a Pokémon TCG Live code card.
Is every pack guaranteed a Rare or better?
Yes, though most packs land at the low end of that guarantee.
How many packs are in a full booster box?
36 packs, also called a Booster Display.