what pokemon need to be traded to evolve in platinum?

[hupika]

what pokemons need to be traded to evolve in platinum?

[Justin]

Trade:
The first style of evolution in Pokemon that encouraged social behavior or having 2 Gameboys and 2 of the games to get the species. It started simply, just requiring you to send it over to a friend and that would be enough. Now though, an item can be required to trigger the evolution. Be careful as some of these evolutions can only be done once. It is worth noting that a trade-based evolution will follow roughly the same move-gain as its previous form.

Kadabra --> Alakazam
Machoke --> Machamp
Graveller --> Golem
Haunter --> Gengar
Seadra (Dragon Scale) --> Kingdra
Poliwhirl (King’s Rock) --> Politoed
Slowpoke (King’s Rock) --> Slowking
Onix (Metal Coat) --> Steelix
Rhydon (Protector) --> Rhypieror
Syther (Metal Coat) --> Scizor
Electabuzz (Electirizer) --> Electivire
Magmar (Magmarizer) --> Magmortar
Porygon (Upgrade) --> Porygon 2
Porygon 2 (Dubious Disc) --> Porygon-Z
Duskull (Reaper Cloth) --> Dusknoir
Clamperl (Deepsea Tooth) --> Huntail
Clamperl (Deepsea Scale) --> Gorebyss

see here:
Pokemon Evolution 200

Happy trading pokemons with friends!

[Justin]

Also make sure to read the pokemon platinum trading guide!

Pokemon Trading Guide

Have fun trading your pokemon with friends!