There was a GBA event in Japan that gave away Encore Cacneas, according to Serebii's event list.So I've been playing around with Encore Cacturne on Shoddy and having some great success. I decide to check the Strategy Pokedex to see what they say about it as I don't even remember him being able to learn it, and find that no sets include Encore. It's not even in Other Options.
So my question is, did he somehow gain Encore in Platinum(I don't remember an Encore tutor being mentioned) or is this just a mistake on Shoddy?