Elite Four
Before battling the Elite 4 remember to heal your Pokemon and buy lots of items.
Also pick 6 good, strong Pokemon that know tough moves. Make sure your leading Pokemon has 4 moves, 1 fire, 1 ice or water, 1 normal, and 1 psychic. Thats all the help I can give.
If you need more help, we've got more Pokemon Sapphire cheats and also check out all of the answers for this game
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