rivershock
Member
Keep in mind that Pokemon's cardpool (keeping only Standard in mind, of course) is far smaller, so countering the entire metagame is far, far easier in a game like Pokemon than it is for something like YGO, where you need to be smart with what cards you side deck, as it isn't possible to counter everything. (Also, there are cards like Garbodor, Frozen City and Enhanced Hammer here that counter a wide variety of decks.) That combined with the fact 60 cards is a rather large deck size to begin with (though if I remember correctly, Magic is similar in this regard), which allows a fair amount of space for techs already and the fact that Pokemon has a lot of draw and search cards, making low-Pokemon-count builds perfectly viable, giving even MORE space for techs, makes me feel a Side Deck would be a bad idea for Pokemon. At the very least, if they WERE implemented, they would have to be very small to not unbalance the game IMO. (Even a Side Deck of something like 5 cards changes a game along the lines of Pokemon pretty drastically.) 20 cards is absurd, and would allow you to hard counter the entire metagame. (There's probably even enough space with which to make counter-siding harder, as there'd be multiple possible options.)