So I have a copy of Pokemon Y that I am going to sell. I don't play it so I have no idea how the Pokedex works on it. I used PKHex to see/catch them all but only 457 of the 721 show in the Pokedex. Are the others only usable in different modes of play (such as online) or is it a flaw in PKHex? FWIW, all of the Pokemon show in the Pokedex for OR when I used PKHex.