The 6th gym leader is Winona who uses flying types so ice, thunder and rock attacks are recommended
dark type
fighting types like meditite and makuhita.
Use Fighting type like Macop(LV 36Best Shot)
This gym uses mainly fire type Pokemon. In order to beat this gym you must use water type Pokemon lvl's 23 and up in order to defeat this gym leader.
You need to beat the leader Norman (Your father in the game), the 5th gym leader.
For Sapphire, Ruby and Emerald The third gym is an electric type, so use Swampert to fight it. If u did not choose Swampert, at least do not use water type or flying type.
None of the gym leaders use Flying-type pokemon. If you want to face a Flying-type gym, you can battle against Winona in Ruby, Sapphire, Emerald, and the ORAS remakes. Sheβs located on the southwestern side of Fortree.
Juan is a gym leader in Sootlopolis City. To get there, you have to use dive. Wallace will be the champion. In ruby and sapphire, Wallace will be gym leader and Steven will be champion.
I believe that is after you've beaten the 4th Gym in Volcanoridge Town.
The Gym Leader Clay Uses Ground Types.
blaine is a fire type gym leader and is located right of cinnabar town so I suggest u use maybe a water type and/or a ground type
I use a type that leader is weak to somtimes.