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The important question we should be asking ourselves, is the wole in Buzzwole a reference to "Swoll"? XD. Probably isn't, but it would make for a good nickname.
Mudsdale is definitely making it into OU. Your opponent will be too scared to use fake out, since the possible switch into Mudsdale, and with an assault vest he could end up as a really bulky damage dealer, and with a wishing chansey, it would definitely be able to pull of a sweep.