Zarion (Main user) [333] 4570-7997-6456 Enk [949] 3780-9403-1484 No.16425704 Report Yes it works.
I did it with a Wonder Trade after realizing that I had traded off something I absolutely shouldn't have, I turned off my DS and switched it back on again only to find that it was still in its box.
I have two 3DS and pokemon games, I can try it out now if you want me to.
