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If the argument is that Cyclizar without Shed Tail is a fairly niche mediocre mon, then by doing a Shed Tail ban aren't you just introducing one meh niche mon (Cyclizar minus Shed Tail) at the cost of removing another (Orthworm with Shed Tail to enable set-up strats)?
Hidden information like movesets, item slots, or even what used to be Hidden Power typing or the entire Pokemon themselves? Should we start making every match fully open-team so that there are no possible surprises and no one needs to spend any effort trying to anticipate what their opponent...