Yup! Although it's hard to get, it's there. To add it to your Pokedex, read the book in the Pokemon Mansion.
Its Phione in Pokemon Platinum, You can get it by breeding a Manaphy and a Ditto Actually; Rotom comes after Manaphy in the Platinum pokedex. Kthnx. http://pokemon.marriland.com/platinum/pokedex/list/sinnoh/ Rotom comes after manaphy in the platinum pokedex phione can be made by breeding a manaphy and a ditto but he's actuelly not in the platinum pokedex :D
darkrai is after manaphy on Pokemon platuinum.
There is no trainer in Pokemon Platinum with a Manaphy. However, you can trade with someone who has a Manaphy, or complete the special Ranger mission in Pokemon Ranger and transfer the Manaphy egg over to Pokemon Diamond, Pearl, or Platinum.
You can't get a Manaphy in Pokemon Platinum, but I could trade you one. My email is likefruit89@yahoo.com.
you have to do the mission in Pokemon rangers(manaphy egg mission)and trade it to your platinum you can get phione by breeding manaphy with ditto at the day care.(its not fair to have 2 games for just a Pokemon in platinum)
breed manaphy
on a book in haerthome
you dont get it at all
Manaphy
manaphy
You cannot find a Phionie, you have to breed a Manaphy.
you... you... you... eat an orange! no. jk.ummmm well... you don't get a manaphy on platnum.sry.