If they were perfect the way they were, why have they continued to be improved upon? Massively expanded movepools and the additions of abilities massively changed them, more than most, if not all, forme differences do. Not to mention Pokemon like Lickilicky and Magmortar that are clearly just enhanced versions of their base forms. Tell me how any forme change compares to simply giving previously worthless Pokemon like Dugtrio and Ditto abilities like Arena Trap and Imposter. ;p
BTW, WPM: Mewtwo hasn't been able to learn Psywave since Gen 1. ;p Maybe it was Psystrike? It doesn't look like it would be a Psychic or Confusion.
BTW, WPM: Mewtwo hasn't been able to learn Psywave since Gen 1. ;p Maybe it was Psystrike? It doesn't look like it would be a Psychic or Confusion.