Oh, you only need to have a legit one, go to floaroma town in DPPt and get it to use it on all of them. <: I dont think i have a legit one on BW, but if you want i could go grab my DS and see if i can trade shaymin to you and trade back!
Skymin just sounds better anyways. though, what would they call altered form giratina? altertina? hahaha