it depends on what Pokemon you have. he/she will have the Pokemon with an advantage over yours. train hard and you will succeed!
Your rival gives it to you after you battle him/her near the weather institute.
your rival gives it to you
The rival in Pokemon sapphire, ruby and emerald is brendan or may. It depends if you a boy or a girl at the beginning (boy=May , girl=Brendan).
From your rival on Route 19.
No, since they're key items, you can only get one, and that's from your rival.
Face and defeat your rival in route 119
Wally, the true rival of Pokemon ruby, sapphire and emerald.
Your rival is named Rival and he's the same rival from Gold, Silver, and Crystal version. His official name however is Silver.
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.
A fake Pokemon GBA generation game which you play as Blue/Green(Firered/Leafgreen rival),your rival is Brendan from Pokemon ruby/sapphire and also .......................................
Only using Gameshark
A fake Pokemon GBA generation game which you play as Blue/Green(Firered/Leafgreen rival),your rival is Brendan from Pokemon ruby/sapphire and also .......................................