A simple name change to the card and nothing more. Here is its picture if you need clarification. (It's also getting a tin edition.)
It's also a Poke-Body, not an attack (albeit it lets it use the attacks of any other Arceus).
ArceusShaymin, please refrain from posting what another individual has already stated. If you weren't aware, then make it a habit to check what the other users have posted.