You can't. You need to trade for one.
Go to the Ruins of Alph
If you have arceus, you go to the ruins of alph and you talk to a man and he will be suprised that you have arceus and then you will see Cynthia and she will tell you to choose Palkia, Dialga, or Giratina
you can but you need an arceus then go to the ruins of alph into the small lab and then you can get a giratina,digla, or palkia
The Sinjoh Ruins are in a far away and unknown place. You are teleported there by Arceus when you try to enter the house of the scientists in the Ruins of Alph with an event Arceus. It is not known exactly where they are, but the ruins are not close to the Kanto or Johto regions.
Have Arceus as the main Pokemon in your party, and then go to the Ruins of Alph and head towards the Research Lab, where a researcher will bump into you, and lead you there.
Steven will never appear in the Ruins of Alph.
no it is legendary. but in Pokemon heart gold or soul silver you get a giratina or palkia or dialga egg by going with arceus to the alph ruins
You have to have beaten red first, then trade over a special event arceus and go to ruins of alph then you can do the event
In the Sinjoh ruins of alph?
after getting all the unowns at Ruins of Alph when you go in the Ruins of Alph a celebi comes
trade over your wifi arceus to hg or ss and put it first in your party. Go to the ruins of alph and try to go into the building with people in it. the older man will take you into the ruins and then the event happens
you bring event arceus and go to the house and be shore arceus is only Pokemon in your party and play rest by ear to get to a special ruins and get dialga, palkia or giratina at level 1.