There is not much of an alternative for the Nintendo DS, and absolutely no official/legal Pokemon-based alternatives. Or emulate Pokemon Trading Card Game 1 or 2 for the Game Boy Color. Pokemon Card Game Asobikata Ds English Rom If you wanted the set for a Trading Card DS game, then move on to Yu-Gi-Oh! They can be bought separately, most likely for a much cheaper price than what they go for in this set (unless you want to import the Japanese card sets.

If you wanted the set for the card collection, then the sets are the Generation 5 Green Tornado, Blue Assault, and Red Frenzy starter packs. Alternatives to Pokemon Trading Card: Asobikata DS. FireEmblemGuy has said all that needs to be said, but I'd like to add something.