All of the cards found within the two Half Decks are reprints from EX Hidden Legends, EX FireRed & LeafGreen, EX Team Rocket Returns, EX Deoxys, and EX Emerald. The only exceptions are the Holofoil cards Plusle and Minun, which were until the release of this Trainer Kit, exclusive to the Japanese Mirage's Mew Constructed Starter Deck. Spoink, Grumpig, and Vulpix appeared in this kit before their EX Emerald counterparts, so they are technically not reprints, as EX Emerald was not released until May 2005.
None of the cards have Rarity symbols and they each feature a collection number and set symbol exclusive to the kit.
In addition to the Half Decks, the EX Trainer Kit 2 also includes an EX Series Booster pack, rulebook, damage counters, status counters, a custom coin (some are packaged with a coin featuring energy symbols, some are packaged with a Rayquaza coin), and playmat.