>>20629248M-Medicham is a marginally better wallbreaker than Mienshao, I'll give you that. But Mien can just U-Turn out of Venu into something that can take care of it easily, while not taking up a mega slot.
>>20629215Regenerator is pretty useless tbh, all you'll recover is life orb recoil, it's too frail, even unstab'd hits kill it easily.