Question

I wanna know because if you could not what would be the point of giving you there orbs in the game?

Answer 1

You can't. You have to trade on GTS or Poketranser from D/P/Pt. You could also cheat.
The reason they give it to you is because you can't transfer items over from earlier, so incase you do get them, you have the three orbs ready.

Dialga

Palkia

Giratina

Comments

Thanks

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Kinda stupid how they'd do that....

Answer 2

You can't catch palkia/dialga/giratina in pokemon BW. You must do one of the following to obtain them:

1. Trade with a freind
2. Trade over GTS
3. Migrate them from an D/P/P or HG/SS
4. Hack one using AR, pokegen, or some other hacking program/device

Comments

THANKS YOU BOTH HELPED