Ok first you need to beat Pokemon Xd to trade with leafgreen, Second of all you need to deliver the sapphire and ruby to celio in leafgreen and have the national dex, Third of all you need a gamecube and a GCN to GBA cable, connect the cable to your GBA or GBASP then in leafgreen save your game with the Pokemon you want to trade and save in a Pokemon center. Next in Pokemon Xd go to phenac city and go to the Pokemon center and head down into the basement then talk to the lady after getting the Pokemon that you want to trade from the PC, When talking to the lady she will ask you to save your game say YES then wait till a screen shows up that shows a gamecube and a controller and a GBA hooked up with the cable when it shows this screen turn on your GBA or GBASP with leafgreen inside the system and wait for the connection to be made. When connected a screen will show up with your Xd Pokemon and the leafgreen Pokemon, use the controller for the gamecube to select the Pokemon from Xd to trade then press A then using the GBA or GBASP's D pad pick your Pokemon you want to trade by pressing A on the GBA or GBASP then press A and finally press yes to trade and you will officially trade Pokemon.
Okay you need a GBA to GCN cable (GBASP works too) and second of all you need to beat Pokemon xd, third of all you need to beat leafgreen and get the national dex and deliver the ruby and sapphire to celio at one island. After doing this in Pokemon xd go to phenac city and go to the Pokemon center and go to the basement and go to the PC and grab the Pokemon you want to trade then talk to the lady near the PC and she will save your game after you say yes that you want to trade then a screen where a gamecube and a controller and a GBA will show up. Now on leafgreen save your game in a Pokemon center with the Pokemon you want to trade then after saving turn off the GBA or GBASP then hook up the GBA to GCN cable to your GBA and the gamecube socket 2 then turn on leafgreen and the connection will start you will notice on the screen of Pokemon xd the GBA will say OK then press A and now a screen will show your Pokemon and leafgreens Pokemon now press A on the controller on the Pokemon you want to trade from xd then using the GBA's D pad and the A button choose the leafgreen Pokemon you want to trade(you have to use the tv screen not the GBA screen) then press A on OK for both xd and leafgreen and the trade will begin then allow the game to save and now you officially traded.
You get it at Navel rock. Trade Ho-oh from Pokemon colosseum and trade lugia from Pokemon xd gale of darkness to leafgreen.
You can trade with another sapphire, ruby, emerald, firered, leafgreen, Pokemon colosseum, Pokemon xd gale of darkness and Pokemon box ruby and sapphire.
Leafgreen can only trade between firered, ruby, sapphire, emerald, Pokemon colosseum, Pokemon xd gale of darkness, and migrate with diamond, pearl, platinum, heartgold and soulsilver it cannot trade with the original silver.
beat the game and get to the indigo or orange or whatever islands, where u find hoenn pokemon.
Electabuzz cannot be caught in Leaf Green. You need to trade an Electabuzz from Fire Red or XD.
no, you can't trade Pokemon from gold to leafgreen. But you can trade them from Pokemon XD from gamecube.
Trade one from firered or leafgreen to xd.
trade it { i traded mine from Pokemon xd }
You have to trade from Firered, Leafgreen or Pokemon XD.
You can trade between firered, another leafgreen, ruby, sapphire and emerald also Pokemon colosseum and Pokemon xd gale of darkness.
You get it at Navel rock. Trade Ho-oh from Pokemon colosseum and trade lugia from Pokemon xd gale of darkness to leafgreen.
trade one in from XD: Gale of Darkness or Pokemon Emerald
you cannot get him on leafgreen or firered you have to trade from emerald or a gamecube Pokemon game like xd
You have to trade from Pokemon XD or Ruby, Sapphire, Emerald, Leafgreen, or Firered.
trade from Pokemon XD: Gale of Darkness (after purification and story mode completed)
You can't get espeon in leafgreen so trade one from Pokemon colosseum or ruby, sapphire or emerald or Pokemon xd gale of darkness.
Navel rock to get there you need a mystic ticket. Also you can trade the lugia from Pokemon xd gale of darkness to leafgreen.