Since a mod seems to agree with me that RBY Mewtwo doesn't belong in a discussion of GSC Snorlax, here's a place for it. This thing has a BST of 590, far eclipsing Mew and Dragonite at 500 and outstripping all competitors in the crucial Special stat. Its typing - mono-Psychic - has no useful weaknesses in RBY, while giving STAB on, and resistance to, the special wallbreaking move of the same name. If this wasn't enough, it has access to the rare and incredibly powerful boosting move Amnesia, doubling its already huge Special in a single turn, a plethora of other special attacking moves to use it with, and the aptly-named Recover to shrug off all but the strongest attacks with ease. Mewtwo isn't just Uber, it was the original Uber; the near-universal banning of Mewtwo from competitive RBY was what gave rise to the concept of an "OU tier" and "Uber tier" in the first place. Nevertheless, some have recently raised questions - probably from lack of relevant experience, as RBY Ubers is rarely played - about just how broken Mewtwo actually is, and as such this thread is here for discussion of that topic.