You cant.
Six without trading.
its simply not possible
you can migrate him from emerald or sapphire.
In sapphire you cannot get Groundon and Latios without trading or cheating.
Trading.
You can't without trading, migrating or, cheats
Unfortunately the event for Deoxys in the GBA games have passed. There's no way to get it in Sapphire without either trading for it or hacking it.
There is no possible way to get Seedot, Nuzleaf, or Shiftry without trading from Ruby or Emerald. Instead, Sapphire has Lotad, Lombre, and Ludicolo. Sorry!
ummmm alot. Over 100, and then theres sapphire trading aswell....
Unfortunately not.
no to trade between leaf green and sapphire or ruby u must beat the Pokemon league then go to the seven islands and find the ruby and the sapphire gems to be able to trade