first, talk to the dude that tells you what type the gym leaders favorite type and what type they are going to use. next,find what could beat that type. now, train your Pokemon to a good lv.
warning!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(this may be used on any gym leader)this will not all ways work but it works for me!!!!!it may be hard to find what beats that gym leader, but look real good (p.s. if you can get your Pokemon to a lv. 100)!Gym 5 is located in Safaron City, and the Gym Leader is Sabrina. She uses Psychic type Pokemon, and it's a bit of a puzzel to get to her.
saffron city (psychic type gym leader)
in the vedirian gym
After you have beaten your dad in petalburg gym, you should go to the house to the left of the gym. Wally's father will give you the HM 03 Surf. you get surf from wally's parents after beating your dad [the 5th gym] p.s. wally's house is next 2 the gym in petalburg city you get it from wally's dad after beating your dad at the 5th gym In Petalberg City after Beating the gym leader go to Wally's house (next door) and talk to his father. you get it from some guy in the 2nd town After you beat the 5th gym leader, Wally's father will take you to his hose and give you the HM surf. If you don't have any water pokemon, teac surf to a zigazoon. go to the marina cave and talk to the guy next to kyoger
in hearthome city
petalburg gym
its the petalburg gym and/or gym 5.
beat him with your pokemon!
simply go back to petalburg where your father is gym leader and you must challenge him
you u go to the 6th gym leader and u beat him.....isnt that kind of obvious??? only a buttox wudnt know that......
after you beat 4 to 5 gym leaders you can face him
roxanne, brawly, wattson, flannery, norman.
I recommend the use of a Dark or Psychic Pokemon or a Pokemon with those moves.
beat the 1st 4 gym leaders and get to the next city
At Dewford town-Go up and go in the cave there will be a hiker and he gives to you if you beat the 2nd gym
Go beat the 6th gym leader ^^, that is in Fortree City.
Head outside of the city to the route with the strongest wild Pokemon and train up your Pokemon until they are 5 to 10 levels higher than the gym trainers.