Capture a Tailow and raise it. Fighting types are weak to Flying types. You can also catch a Ralts.
Beat the Gym Leader
ground/rock will be good
8th gym leader
Dewford town.
Find cut
nope
Try his perents house
You need REALLY strong Pokemon the defeat the leader. His minions are easy. The leader has three Pokemon and they are all fire.
You must beat the last gym leader first.
Use strong water or dark type Pokemon
Pokemon fire red Sabrina Pokemon crystal the last gym leader Pokemon ruby BRAWLY IT TOOK ME TIME TO BEAT HIM Pokemon platinium fantina
If you mean "Is Juan the leader in Pokemon ruby?", then no. It's Wallace who's the leader. Juan is leader only in Pokemon emerald. The champion is Wallace in Emerald, but Steven is the champion is Ruby and Sapphire.