It's not easy to beat the frontier brains especially Noland because you have to use Rental Pokemon that you don't know that well so thing's can be tricky there. But there is a trick and it is this: Somewhere in the battle frontier (in a house) there's a person that mentions each frontier brains Pokemon but doesn't give away any names just what kind of Pokemon they are like for instance he will say the fairy Pokemon which would be Clefable (that was an example). Once you know the frontier brains Pokemon you can plan ahead of time and make up a team of expert Pokemon that can take there Pokemon down but the real hard part is just getting there in the first place so be ready for each facility each presents a unique challenge so heads up!!
i assume ur already there, so I'll go through each one.
battle tower: beat 5 rounds in a row and beat the brain for the silver symbol beat 10 rounds in a row and beat the brain for the gold symbol brain: anabel- alakazam, entei, snorlax -- use dark/ghost, water, fighting
battle dome: beat 5 rounds in a row and beat the brain for the silver symbol beat 10 rounds in a row and beat the brain for the gold symbol brain: tucker- salamence, swampert, charizard -- use ice/dragon, grass, water/electric
battle palace: beat 20 rounds in a row and beat the brain for the silver symbol beat 100rounds in a row and beat the brain for the gold symbol brain: spenser- crobat, slaking, lapras -- use psychic/electric, fighting, electric
battle arena: beat 4 rounds in a row and beat the brain for the silver symbol beat 8 rounds in a row and beat the brain for the gold symbol brain: greta - heracross, umbreon, shedinja -- use fire/psychic, fighting, fire/flying/dark
battle factory: beat 3 rounds in a row and beat the brain for the silver symbol beat 100 rounds in a row and beat the brain for the gold symbol brain: noland - random, he works with rented Pokemon, they change each time u battle him
battle pike: beat 2 rounds in a row and beat the brain for the silver symbol beat 10 rounds in a row and beat the brain for the gold symbol brain: Lucy - serviper, shuckle, milotic -- use psychic?/ground, water, electric
battle pyramid: beat 3 rounds in a row and beat the brain for the silver symbol beat 10 rounds in a row and beat the brain for the gold symbol brain: Brandon - regirock, registeel, regice -- use water/grass, fire/fighting, fighting/steel
hopes this helps,
The best way to defeat Norman in Emerald, Sapphire, and Ruby is to catch a slakoth in the Petalburg Woods, and then trade it in Rustboro for a Makuhita, since fighting type are super-effective on Normal.
You fight the Last Frontier Brain in Pokemon Emerald at the Battle Pyramid.
Get a geodude and then evolve him to gravaler at lvl 25 then trade him he will evolve again then trade back use earthquake it is super efftective on electr tipes
The 4th gym leader has fire type pokemon if you use water type pokemon, rock type pokemon or ground type pokemon you can easily win.
you build up your Pokemon higher than the gym leaders and the you kill the gym leaders Pokemon and as they all faint you will get a badge and you have to move on to nuger 4 gym leader
after you beat your father's gym
beat the 8th gym
Defeat all of the Gym leaders on Emerald. ~KKMG1
Go in. Beat the GYM. THAT SIMPLE
'farfetch'd does not evolve' what? the third gym is in mauville. The leader is 'wattson' and he uses electric pokemon.
marshtomp
Beat the gym leader
go to slaport :)
...you beat the gym leaders
get better pokemon
You beat all of her Pokemon. You beat all of her Pokemon.