The only way to get Jirachi in Diamond Version is to import it through the Pal Park from either Ruby or Sapphire Version. In either Ruby or Sapphire, though, the only way to get Jirachi in the first place is to play either Pokemon Channel or Pokemon Colosseum and import it from there.
You can't catch it.
Ruby or Saphire
put the game inplay the gamewaalahh jurachi
A Nintendo event, which probably already happened.
You can find Pidey in a Pokemon Outbreak in Pokemon Diamond
where do i find a totodile in Pokemon diamond/pearl on nintendods
You can not find or get manaphy on Pokemon diamond but you can by hacking, trading or... if you have Pokemon ranger you have to complete the manaphy mission and then you can put it onto diamond.
You can't find a Ho-ho in Pokemon Diamond. You have to migrate.
To get a Manaphy in Pokemon Diamond you have to get Pokemon ranger and defeat it and you have to trade it to Pokemon Diamond,Platinum or Pearl.
its not a Pokemon
Not really that rare... in Pokemon Diamond you can find Sunkerns on Route 204
you have to catch all of the pokemon in diamond or SEE all of the pokemon