I have a level 100 Darkrai and a Level 100 Latias and a Level 50 Raiku and a Level 100 Pikachu on my Pokemon platinum game and I want to transfer them to my Pokemon Black 2 game. Is it possible to do that with only 1 DS? If it is, how? Thank you so much!
You need 2 DS's to PokeTransfer.
Source: Experience
You need 2 DSs to transfer,because if you only use one DS,you won't be able to,because you cannot fit 2 DS cartridges in the DSi.
2 DS's are required to do a transfer. There is no other way to transfer with 1 DS (hopefully a new DS will be able to have 2 game ports for trading stuff) SOURCE ROCKS: Experience.