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Have you thought of using AV tapu bulu instead of AV tangrowth, i think its grassy terrain would realy help t-tar and Kartana but can be a nuisance for excadrill weakaning its earthquake
recently i'v been getting very bored with the Ultra sun and moon metagame so i decided to make a team around Mega Garchomp wich is almost never used but can be a very big offensive threat.
Now...