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 in addition.
This information applies to any games that feature both pokemon from the chain, including Pokemon Black & White.
Evolving from | Evolving to | Item | |
|---|---|---|---|
| Poliwhirl | → | Politoed | King's Rock |
| Kadabra | → | Alakazam | |
| Machoke | → | Machamp | |
| Graveler | → | Golem | |
| Slowpoke | → | Slowking | King's Rock |
| Haunter | → | Gengar | |
| 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 |
| Feebas | → | Milotic | Prism Scale |
| Dusclops | → | Dusknoir | Reaper Cloth |
| Clamperl | → | Huntail | Deepseatooth |
| Clamperl | → | Gorebyss | Deepseascale |
| Boldore | → | Gigalith | |
| Gurdurr | → | Conkeldurr | |
| Karrablast | → | Escavalier | Trade with Shelmet |
| Shelmet | → | Accelgor | Trade with Karrablast |