Pokemon Platinum Re-battle legendary codes?

I would like to know if there are AR Codes to re-battle the legendaries in Platinum. The Pokemon I'm mostly looking for is Shaymin, because I haven't found a code for him anywhere. Also, I was wondering if there was some kind of code to transform multiple Rotom to the different forms, because I'm looking to have two of each forme. Thanks guys.

Yes there are codes. Look them up on google or something.

I wouldn't be asking here if I found them.

Dunno about the former (although KazoWAR did some for HG/SS so they're likely to exist), but with the latter I'd simply suggest using a clone code for each Rotom form after it's been transformed.