where is the platinum orb!

Well after you beat the elite four head back to spear pillar then you fight a level 70 palkia and dialga first dialga.

For the platinum ord go to sendoff spring and go through the maze and when you get to girantina's room you see a portal or if you didnt catch it girantina will be there but after there will be a portal. Hope this helped.

THE GRISEOUS ORB IS AT THE DISTORTION WORLD AT THE END OF TURNBACK CAVE

Orb:ok so in order to get the platinum orb which is called the griseous orb you need to have defeated the elite four once youve done that you need to go back to turnback cave (the place you ended up at after you exited the distortion world).once you get through that youll find a portal back to the distortion world.Go through it, in this small area you will find the orb.

Dialga/Palkia:to start, you need to have defeated the elite four and obtained the national dex. Once you have done this you need to go to stark mountain, beat mars and jupiter, follow charon, then go to the survival area and talk to the red head(I forgot his name). After that go back to the place where charon was and the stone will still be gone(Charon tried to steal this magma stone and the red head said he would put it back).Instead heatran will be there. You have to either beat or capture it. Once youre done go back to celestic town and go to the cave. If you press a on the cave painting cynthia will come. Keep letting her talk until she says she thinks she was talking too long. When you go to the spear pillar there will be a blue rift inside will be Dialga. Once you have beat or captured him go back inside the cave. Come back out to the spear pillar and there will be a pink rift containing Palkia.

P.S. Spacial Rend and Roar of Time have a cool new look in this game!

Thanks Gaaraboy414.I have asked the same question(part #2) but I did not get an answer.I will try it now!