You just train all your Pokemon to a high level, then try and use suppereffective moves against the leader.
The Fourth Gym is in Lavaridge City.
The fourth gym.
Beat the Gym Leader
i dont now
The Fourth Pokemon Gym in Ruby is located in Lavaridge town. It is home to Flannery who specializes in fire pokemon. (just give them a good hosedown and take a swim in the hotspring)
It's in the town with the fourth gym leader.
By defeating the the fourth gym leader
Lavaridge town is where you get the fourth badge in ruby.Hint:the gym leader uses fire types so use a water type.
you should upgrade your emulator
The fourth gym is the fire gym in fallorbar town.
I dont know if im right, but she has a Toarkal, Camerupt, maybe Numel, and Slugma
You must first go through the cave of origin.