How many cards does each player draw for their starting hand in the Pokémon Trading Card Game?

How to get close to this number

Opening hands across card games are remarkably standardised, and that convergence is the clue. A hand has to be large enough to contain a playable mix and small enough that the draw still matters — and designers across the genre have landed in the same narrow range. If you know the opening hand size of any major trading card game, you know this one.

The reason the sizes match is not coincidence, and the explanation says so directly: this game borrowed the convention, along with several others, from the game that established the genre. Trading card games form a design lineage, and a surprising amount of what feels like a rule of nature is actually inheritance from one 1993 release.

Worth knowing that the opening hand interacts with a specific rule in this game: a player who draws no Basic Pokémon must reveal the hand and redraw. So the starting hand size is not just a number but part of a mulligan system designed around it, and changing it would break the probability the whole opening is balanced on.