Glaceon, which you get by..........................
First, getting Eevee at Bebe's house in Hearthome City.
Then, go to the route to the south of Snowpoint City, and find the rock in the top right corner. Level Eevee up in the grass around it and you'll get Glaceon.
Swinub is #203 in the Sinnoh Dex in Pokémon Platinum.
Vaporeon.
happiny
wormadam
its a cascoon
Wormadam
Dusclops
It is Leafeon.
Glaceon
Dusclops
Rotom
porygon