No.
there is no such thing.
A lot
Depends on what part of the game your at if you finished complete the pokedex, get the stickers for your trainer card and try the trainer tower.
No, you can't steal Pokémon from other trainers in Pokémon Sapphire.
Yes, maybe you:P :P
he lives in mossdeep in Pokemon Sapphire and he is the Pokemon league champion he is a steel type trainer.
In Pokemon Sapphire, there is only one trainer in the game that has a Ludicolo. To find her go to Victory Road and search around everywhere and you will find a pokmeon trainer that has a Nosepass LV 42, Ludicolo LV42 and Medicham LV42.
Wally, the true rival of Pokemon ruby, sapphire and emerald.
very close to pacificgog, or whatever. ask trainer tabitha.
If you capture it you are the trainer with latios ,but if this game is like sapphire in fortree city there's a guy and agirl with latios lvl 53
well it depends either you or your rival if you chose mudkip its your rival if you chose it, there you go but i'm not sure if any other trainer has it.
That's your trainer ID number, not a Pokedex number.