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For use in a Mono-type tournament with friends.
I'm aware of how much Sap-Sipper Azumarill sucks, but one of my friends' favourite type is Grass, so I feel like it'll be a great surprise. Not sure about Belly Drum on it though.
Oh, I should also mention this is a build I made on Showdown and we're using the actual games, so it'll be pre-bank.