It is called the Griseous Orb.
Chat with our AI personalities
go to turn back cave then distortion world is in their. i like poo
Giratinas griseous orb is in the reverse world, you'll have to capture giratina and go back into the reverse world to obtain it. As for dialgas and palkias these are found in mount coronet...I'm not sure if you have to beat the elite 4 first or not...but when you encounter palkia and dialga they are at level 70 so goodluck
giratinas national pokedex number is 487.
the red orb gives you the chance to catch groudon and the blue orb gives you the chance to catch kyorge.
Let Palkia hold the lustrous orb, and let Dialga hold the adament orb. It boosts their special moves' damage.