from a event or a cheat but you have to go to a pokemart to get it in the game
you use a action replay and use it to get oaks letter
get the oaks letter cheat on the action replay and talk to the guy in the pokemart
You get oaks letter from a special event that is on the internet or wifi. you get it from any poke-mart in sinnoh
u can put a cheat on ur action replay for oaks letter
u need oaks letter that's where shaymin is get oaks letter.
that was an event to get shaymin! i dont think you can get it the only way to get oaks letter is from an AR code
Nintendo event or AR
you get it with a Nintendo event
no
Event or cheat
impossible
go to a Nintendo event.