Captain Jigglypuff
*On Vacation. Go Away!*
GF tend to give hints in the form of event Pokémon. Look at the Pikachu Colored Pichu, Draco Meteor Jirachi, and Movie Regigigas to name a few. They all unlocked a special event in either Platinum or HGSS when traded over or in BW when transferred in the case of the movie Celebi and the Shing Legendary Beasts.