Water Pokemon Master
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I really do not think this will be the extinction of every deck on the planet. They play this Stadium, you play yours. Think about it. They play this Stadium one turn, which may not really affect anything until your turn when you need to use a power/body, and then you use a Stadium to get rid of it and play your turn normally. I think that the only dangerous situation would be if your deck did not contain any Stadiums to counter another, in which you would be totally stuck. Otherwise, this may just cause people to add in 1 or 2 more Stadiums, but I really do not think it will make a huge impact on the game.