Use Pikachu.
(S)hes the best:)
beat the mini fighting gym next 2 the real psychic gym
Defeat the gym leader in Saffron City.
beat the 2 gym leader
train your pokemon more.
Go to Mossdeep city and beat the gym.
in her gym u have 2 beat veilstone & pastoria 1st
beat pokemon gym leader clay,take on route 6, go through chargestone cave,then you'll be at the 6th gym.
to get to the 8 gym first you have to catch/beat palkia/dialga(or girantina in Pokemon platinum)
After you beat the first gym, Bianca will give it to you.
Koga, the Fuchsia City gym leader, is a Poison Type Pokemon trainer. Go into battle with ground and psychic type Pokemon. The Pokemon he uses are 2 Koffing, one Muk and one Weezing. Bring a Diglet/Dugtrio, an Abra (Kadabra/Alakazam), Drowzee and a Chansey if you can get one (Chansey is a super strong Pokemon that can learn TM Physic).
you have to beat 2 other gym leaders before fantina appears, you have to beat wake and maylene. wake is a water gym leader and maylene is a fighting gym leader
18,20. that's herdier lv.18,wathchoglv.20 hard to beat if you train all Pokemon.~o