Expedition

Expedition Base Set, released in September 2002, is the 14th set of cards in the Pokémon Trading Card Game. Its symbol is a Poké Ball drawn to look like a lower-case "e". At 165 cards (330 if its parallel set is included).

It is the first to use the e-Reader: By scanning a dot code found on the bottom of all of the cards and the sides of some, the e-Reader can display patterns, produce sounds, or other various novelties. However, none of these features are required for play. Subsequent sets, up until EX Hidden Legends, would also be compatible with the e-Reader.

Because of its completely new format, this was thought to be a good time to balance the card game with less powerful versions of previously printed cards. For example, Energy Removal 2 serves an identical purpose to Energy Removal from the Base Set, except a coin must be flipped to determine if the effects are successful. However, this set also introduces the Supporter card, a type of Trainer card that now dominates competitive play.