She's in Hearthome City, but you have to wait for her to return, her name is Fantina[I forgot how to make her return]. She has: Mismagius, Drifblim, and Gengar[forgot the levels]. Obi Agbarakwe
Candice
a Pokemon with a good ground type move like earthquake
I have that game. I just went to the town witch that gym leader is and found my way to them and fought them.............................
byron the sixth gym leader u fight him in canalave gym
You have to go to Veilstone City and fight the gym leader there first.
Go into her Gym and make it through the maze. She battles with Ghost Pokemon, watch out for the Mismagius.
Go back to Olivine City and give the medicine to Jasmine. Then fight her at the gym.
I think you have to go back to Hearthome city. There you can enter the gym and fight Fantina.
fight the wild Pokemon nearby, they give good exp
cant fight just capture
use a rock type pokemon.
beat the Pokemon league