How many different Magic: The Gathering cards exist?

How to get close to this number

Multiply releases by set size. The game has run since 1993 with several sets a year, and a set typically contains a couple of hundred new cards. Three decades at that rate produces a total in the tens of thousands, which is the right region — and the arithmetic is far more reliable than any impression of how big the game is.

The trap is thinking about the cards you have seen. Competitive play uses a rotating subset, and a player's collection is a tiny slice, so the felt size of the game is orders of magnitude below the printed total. Games with continuous release schedules accumulate content far faster than any individual can track, and that gap widens every year.

What counts as a unique card is a real question here. Reprints, alternate arts, foil variants and language editions can be counted separately or together, and databases differ on all of them. The figure quoted follows a widely used card database counting distinct cards rather than distinct printings, and only cards printed for tabletop play, leaving out joke sets and digital-only cards — a different but equally defensible convention would produce a substantially larger number.