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Your strategies are pretty good , not too sure about the Golem though. It seems to slow to be doing Defense Curl-Rollout combo. Maybe more paralasis support for him and Slowking; idk
naw, I should have seen that Roar coming, I saw it before and I thought I would have the game in the bag after that BP. But yeah, as much as I love the lead, Double Powder can be played around if you have enough guts.