You can't, you will need to trade them from Pokemon Diamond, Pearl or Platinum.
Darkrai has the catch rate of maybe the lake pokemon( Azelf, Uxie, and Mesprit) seperate.
You will need to catch the three lake lengendary pokemon. (Mesprit, Uxie, Azelf).
you can go back and catch: -azelf -Uxie -Mesprit and also a SECOND -Palkia and a SECOND -Dialga
some say you can catch dialga in the celestic cave, that's how i got him.
to catch mesprit in pokemon platinum go to its cave(after beating team galatic and catching/defeating girantina)at lake verity use surf and swim to the cave in the middle. talk to mesprit and it will run away and oak will tell you after it and use your marking map to track it down. best strategy to catch it is get a pokemon with a move like mean look or make it go to sleep. also mesprit is level 50 like uxie and azelf
sorry man, but you cant get a azelf uxie or mesprit in Pokemon soul silver...
Darkrai has the catch rate of maybe the lake pokemon( Azelf, Uxie, and Mesprit) seperate.
In Pokemon Platinum Version, what type of pokeball do you use to catch Azelf Uxie and Mesprit?Use dusk balls and timerballs later on, use a pokeball if u want, for mesprit it's a quick ball.
You can catch Dialga, Uxie, Azelf, and Mesprit
=no=
In Pokemon diamond you can catch Dialga, Azelf, Uxie, Mesprit, Cresselia and Arceus
the way you catch azelf mesprit and uxie.
You will need to catch the three lake lengendary pokemon. (Mesprit, Uxie, Azelf).
Dialga, Uxie, Mesprit, Azelf, and probly Arceas.
No. Mesprit, Uxie and Azelf can be caught normally, they're just extremely hard (especially Mesprit).
In platinum it would be better not to kill mesprit uxie and azelf, it would be better to catch them.
Without trading, cheating, or Nintendo events, you can get Dialga, Uxie, Azelf, Mesprit, Heatran, Giratina, and Cresselia.