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3D models that improved a pokemon
seeing Samurott and its posture makes makes it more feasible to swing a sword around, instead of slouching like a sea lion. Plus, actually seeing swing its sword around in game is a big plus.
rhyperior slimming down makes it look a lot better.
seeing the megas in-game definitely gave me a better look of them compared to the artwork. this is also true for quilladin and klefki.