Asked in Pokemon Diamond Pearl and Platinum
How do you get Giratina on Pokemon Pearl?
First, defeat the elite four. It may take a while for amateurs, but after you do, a place will open up called spring path. Follow that path until you come to a cave, and once you're inside just go to random rooms. Save before you enter, and bring lots of dusk balls (they work suprisingly well on Giratina). Also, make sure at least one of your Pokemon are level 68-70+ because Giratina is level 70. Eventually after going to random cave rooms, you will come face to face with giratina. It would be a good idea to save right before you battle it. Get it's hp in the red zone, and then try a dusk ball. If that doesn't work, try again. Good luck!