You can't, because if you trade it from Platinum and it's skyform, it turns into land form.
you cant in dimand and pearl, but you can in platonom
you cant get it now because it was in 2009 and it was an event
darkrai shaymen infernape and staraptor
all trainers i know u all have alot to accomplished good luck
u can't evolve a Shaymin. but if your referring to sky form, you still can't. Only on Patinum.
TO GET SHAYMEN IN LAND FORME
u cant. you have to cheat or du the event which has ended so if you dont cheat know youre out of luck.
I think it is but its the same as Pokemon diamond. just with shaymin skyform and Giratina Origin form and the other rotom forms
i think it iss celebi because its rubbish. shaymin is good because he can be skyform which is beast.
there are actually 493 Pokemon but if you want to know more try learning about Pokemon platinum that should have 5 new Pokemon and a new shaymen form.
in front of the isle after you capture the real shaymen
there are no new Pokemon in platinum exept origin giratina and shaymin skyform