Whatever one you want?
It stands for Global Trading System. Its the wifi trading staion basicly
Yes
You can do pokemon global trade in The counter at the top left corner of all pokemon Centers
Trade Pokemon that you have more than one of for Pokemon that you don't have. If you have AR, you can just clone Pokemon to trade.
Trade from pearl or if you have internet support go to the GTS (Global Trading System) building and look out for one there.
There's never nothing left to do in Pokemon games. You can battle with your friends (offline and online), obtain all of the Pokemon, trade Pokemon on the Global Trading System, rematch the Elite 4 and Gym Leaders, and more.
just use the Pokemon global trading system. if you have platinum pearl or diamond it is in jubelife city. and if you have heartgold or soulsilver it will be in goldenrod city.
To get it legitly,the only way is by a event. All events are over. You can only cheat for one or get one on the Global Trading System now.
Global Trading System is in Jublife City and WiFi Trades are in the basement of any pokecenter (The orange building where you can get your Pokemon healed). Or, if you are in with the person you intend to trade with, go to Union room, which is on the upper level of the pokecenter.
You cant get a wild deoxys. But you could trade using the global trading system in jubilfe city. Just trade a bad Pokemon for him. chances are sombody will trade for it.
The Global Trade System(GTS)!!
if you mean the trading system for the game than no. the trading system only works on the ds.