F.Y.I., it is spelled Suicune, not Sweacoon. And you find it randomly in the game after you beat the Elite 4.
C Dawg
Chat with our AI personalities
trade it
Usually you can find it in seafoam islands.
leaf green only.
You can't find Eevee in Pokemon Ruby, but you can trade for it from Fire Red, Leaf Green, and XD.
You can't catch a poliwag in Pokemon Sapphire. You have to trade from Pokemon Fire Red or Pokemon Leaf Green.