Pokémon trade evolutions
This is a list of pokemon that evolve by trading. The classic four evolutions (Alakazam, Machoke, Graveler and Gengar) from Red/Blue/Yellow evolve only by trading, while pokemon from later generations require an item to be held as well.
This information was compiled for Pokémon Diamond/Pearl, but also applies to any game in which the pokemon are part of the Pokedex.
| Evolving from | Evolving to | Item |
|---|---|---|
| Kadabra | Alakazam | |
| Machoke | Machamp | |
| Graveler | Golem | |
| Haunter | Gengar | |
| Poliwhirl | Politoed | King's Rock |
| Slowpoke | Slowking | King's Rock |
| Onix | Steelix | Metal Coat |
| Rhydon | Rhyperior | Protector |
| Seadra | Kingdra | Dragon Scale |
| Scyther | Scizor | Metal Coat |
| Electabuzz | Electivire | Electrizer |
| Magmar | Magmortar | Magmarizer |
| Porygon | Porygon2 | Up-Grade |
| Porygon2 | Porygon-Z | Dubious Disc |
| Dusclops | Dusknoir | Reaper Cloth |
| Clamperl | Huntail | Deepseatooth |
| Clamperl | Gorebyss | Deepseascale |