The second Gym Leader uses Rock type Pokémon which are weak to Fighting, Ground, Water, Grass and Steel types.
However, his Pokémon's secondary typing change the match-up a bit:
Find ALL the trainers beat them all, and then fight the Gym Leader at the front.
go to hearthome city
beat the second gym leader. hope this helped! : )
Use a fire pokemon. That's what grass is weak against.
battle wild pokemon until yours is lvl18+
Simple. You need to beat the gym leader in Eterna City. She is only the second gym leader and her Pokemon are fairly easy.
beat him with your pokemon!
You beat all of her Pokemon. You beat all of her Pokemon.
the best way to beat the 7th gym leader is with a fire type Pokemon
The scound HM is Rock Smash you can get it after defeating the gym leader at Rustboro.but then you have to beat mauwile gym leader .then you talk to the person on the right side of the gym.
beat the gym leader
you beat the gym leader