>>43320057Mimikyu's "head" is full of plush, you're essentially attacking a decoy that deflates. Sudowoodo isn't covered by anything and every part of its body would hurt if hit.
That said, it'd be cool if it got disguise. Gamefreak likes to make virtually the same ability multiple times with different names, so maybe they could give it the "mimic" ability with the same effect. Even better repurpose g-stunfisk's useless mimicry ability into this. Electrode and lurantis would also like to have it.
