You can't. You'll have to migrate it from older Pokemon games, trade, or hack and cheat.Get groudon and kyorge then get the legendary birds then get one grass Pokemon that knows mega drain(has to be lvl 30 just to slowly lower his health)and talk to Cyrus he will be thinking out loud about a Pokemon called spiritomb it will come and disappear and do that for about 10 times then raquaza will come and its angry because of you(that's what Cyrus says)andwill fight if you beat it go to canlave talk to the gym leader and he will say something you will black out and keep on blacking out till you get beat or catch him
Raquaza isn't in either Pokemon Diamond or Pearl.
You can't get a raquaza in Pokemon Diamond.
he isn't
You need to trade Raquaza's game (Emerald or Ruby) To Fire red. Then go to pal Park.
Migrate it into Pal Park.
Impossible without transferring it from your other games. ~Sherry
You can't unless you have an Action Replay Ds
depending on the game there r certain Pokemon u cannot catch like say on emerald u cant catch palkia or dialga so on diamond u cant catch raquaza sorry
i would try the two methods recommended for getting a black charizard on diamond but if you do not have an emerald game or a diamond game then i have no answer
Shiny Rayquaza cannot be caught on Pokémon Diamond unless you cheat.
don't think so but you can in sapphire ruby emerald in the sky pillar but not for sure about emerald
raquaza is a master legendary Pokemon in emerald ruby and Sapphire. his is most likely to be the best Pokemon in the series (Case in point)