The trend of everything becoming "cuter" and less-detailed is hot trashhttps://twitter.com/SlowSpeedrun/status/1136720098406719488 …
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I feel it's more due to the fact that sharp + detailed has been thoroughly explored for several generations, but I'm not part of the design team so who knows! as long as themes continue to change over the gens, we'll keep getting unique and interesting Pokemon either way :)
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