You have 2 Nintendo DS then send the darkrai (You have to have the mystery gift in diamond or pearl)
its called Almia And the only way you can do that was to do the special darkrai mission and send it to pokemmon DP like you did with the manaphy egg
I think you get it from shadows of almia
You can transfer Darkrai Shaymin and Manaphy from Pokemon Ranger Shadows of Almia to Pokemon Diamond using Nintendo wi fi connection.
Darkrai
You can't have a Darkrai as your friend pokemon, I think, but the final boss at Altru Tower is a Darkrai.
Yes, it's the only way AFAIK that you can get Manaphy on DPPt.
You can't trade Pokemon from diamond to shadows of almia, only from shadows of almia to diamond.
Darkrai
Aerodactyl
You can only trade a Darkrai, Riolu and Manaphy egg obtainable by doing Wi-Fi missions
yes you can trade from shadows of almia (i think). also you can migrate a Pokemon from fireRed leafGreen emerald ruby and sapphire(i think) when you have beaten the e4 and got the national pokedex. hojojojojohoho
No, you cannot transfer Pokemon from Diamond/Pearl to Pokemon Ranger Shadows of Almia.