Focus
Ubers Tester Extraordinaire
Flavor Ability
Unless I'm mistaken, we have always assumed that Prankster would be legal with all those non-attacking moves. No hidden ability is only for pokemon with truly exceptional abilities, so no. We do not even have to "release" the ability yet (like almost all gen 5 pokemon), and we could give it something pointless like Slip Through so that it will never matter.
Edit: P.S. I am and always been American, yet I have always spelled it "flavour". I am not sure what that means...
Unless I'm mistaken, we have always assumed that Prankster would be legal with all those non-attacking moves. No hidden ability is only for pokemon with truly exceptional abilities, so no. We do not even have to "release" the ability yet (like almost all gen 5 pokemon), and we could give it something pointless like Slip Through so that it will never matter.
Edit: P.S. I am and always been American, yet I have always spelled it "flavour". I am not sure what that means...