I'm not actually a big fan of the pure BP set on Mew. Swords Dance is done better by Gligar, +2 Speed is done almost as well as Zapdos, and this mythical fantasy world where your opponent lets you get two +2 boosts and then safely Pass them to an opponent is not something I've ever found to work in experience, especially when there are great QD and Shell Smash passers around. A 2 attacks + BP set is okay but probably not better than Other Options material.
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