I've completed it mate and I've got a few spare legit Diance's.cant trade Event pokemon on the GTS anyway can you?
As an aside, I have almost finished my living Dex. Just missing the Legendries from Alpha Sapphire and Palkia from Ruby. Throw in the remaining Events for the rest of the year and ill be complete.
Well almost, missing Diance but im hopeful I can find one.