Haunter, Machoke, kadabra, and Graveler evolve just by trading, but other Pokemon evolve by trading and holding items. For example, syther and onix evolve by giving them a metal coat and trading. Seadra evolves into kingdra by giving it a dragon scale and trading, clampearl evolves into Huntail when you give it a deepseatooth and trade it,or into gorybass by giving it a deepseascale and trading it. Porygon evolves into porygon2 when you give it an Up Grade and trade it, and then evolves again into porygon-Z when you give it a doubious disc and trade it. Polywhirl evolves into politoed when you give it a kings rock and trade it, or you can give the kings rock to slowbro and have it evolve into slowking. Rhydon evolves into rhyperior when you give it a protector and trade it (but only in platinum, diamond, or pearl). Electabuzz evolves into electevire when it holds a electrizer and traded, and magmar evolves into magmortar when you give it a magmizer and trade it, but electabuzz and magmar only evolve in platinum, diamond, or pearl. Dusclpos evolves when you give it a reaper cloth and trade it, again only in diamond, pearl, or platinum.That is all the Pokemon that evolve by trading.
machocke kadabra hunter graveler
There is no game play Pokemon trades for Graveler. You'll need to trade for one so it'll evolve to you.
machoke - machamp, haunter - gengar and Kadabra - alakazam
Slowbro evolves into Slowking while hold the King's Rock when you trade him.
First go to fuschia city and find the person who trades lickitung for golduck. He is in one of those gaurdhouses. Get lickitung and evolve
Spin trades are when you and another person trade eggs. Spin trades can be used to get all starter Pokemon.
it evolves by friendship. it does not evolve by level,stones or trades.
Pokemon Gold Trades Are not possible, However, the Updated "Heart Gold" and "Soul Silver" versions have trades. these trades can be commenced in any Pokemon center. On the top floor, in the "Union Room."
50 plus trades.
Every Pokemon does not evolve. The legends, and unowns don't evolve. Only 90% of the Pokemon evolve.
trades
pokemon do not evolve on pokemon colosseum