Pokémon Sapphire Tips

Tips for battling and catching pokemon
If you are in front of a rare once-in-a-lifetime pokemon, save before you battle it. That way, if it dies, you can try again.

If you are in front, near, or suspect a battler,save the game! You can find out what pokemon they have (and what you need) and if you need to train your pokemon. You just turn the gave off without saving if you die.