you get it on mt pryrai lv 28 on thre top
He is not in Pokemon: Sapphire. You will not be able to find him. He is in Pokemon: Diamond, Pokemon: Pearl, and Pokemon: Platinum. You will definitely have trouble finding him in Pokemon: Sapphire.
Someone can find cheats for Pokemon Sapphire online by looking on neoseeker or cheatscc or look for Pokemon Sapphire separately but finding cheats shouldn't be difficult.
The chances of finding a shiny Pokemon in any game is 1/8192. Good luck!
On Pokemon Sapphire, you can find a skitty on route 116, near the Rusturf Tunnel, but it's very hard to find. You have about a 2% chance of finding one!
The chances of finding a wild Wailord is 1% while surfing in Route 129.
give it to celio and then mewtwos cave will be unlocked
The only way, I repeat, the ONLY way to get Jirachi on Sapphire without cheating is to connect your Sapphire game to the bonus disc included with pre-ordered copies of Pokemon Colosseum. Good luck finding it on eBay!
You can find a Slakoth in the Petalburg woods. Keep in mind that they are very rare. There is only a 5% chance of finding them.
you don't its never seen again
You go to one island and give them to celio in the pokecenter.
Just go anywhere that wild Pokemon can appear. You've got a 1/8192 chance of finding a shiny, though.
That depends how you define "strong" in relation to the levels of Pokemon that you have now. If you're finding that the Pokemon you encounter are too weak, then progress through the game and the wild Pokemon will be stronger.