HOW TO GET OAK’S LETTER IN POKEMON BRILLIANT DIAMOND & SHINING PEARL (OAK’S LETTER MYSTERY GIFT) by The GamePad Gamer | Dec 11, 2021 | VideosHOW TO GET OAK’S LETTER IN POKEMON BRILLIANT DIAMOND & SHINING PEARL (OAK’S LETTER MYSTERY GIFT) (SHAYMIN MYSTERY GIFT EVENT) source