The Pokemon i always use to beat the elite four are charizard,mewtwo,tyranitar,zapdos,alakazam, and suicune.
Lorelei=charizard for jynx and piloswine, and zapdos' thunder for the rest
Bruno=charizard for onix and steelix, and zapdos with drillpeck with the rest
Agatha=mewtwo or alakazam(you choose) for all of them
Lance=Zapdos for gyarados and aerodactyl,alakazam or mewtwo for the dragonites,
Gary=Zapdos for pidgeot,mewtwofor rydhon,zapdos with alakazam,charizard for execotur,zapdos with blastoise
that's how i usually beat it the first time and the rest of the times
i have beat the elite four 120 times and got my Pokemon to all lvl 100 with 300 hours of gameplay.
hope this helped
use the same Pokemon the second time but beat them for their weaknesses like when you fight Gary the second time, he has a heracross. You can either charizard or zapdos with drillpeck
beat the elite four 100 times to get fire, ice, and thunder punch all at once
Mewtwo, Alakazam(if you don't have alakazam, use kadabra) just use any psychic moves on her ghost Pokemon
he stays in the elite four as champion
After you get the national dex {beat the elite four, and get 63 or more pokemon}, and after you talk to Celeo
if it is the first time you are fighting elite 4, the strongest is lvl 63, your rival's starter pokemon. Hope ive helped
you only have to beat the elite 4 on Pokemon fire red not ruby
you have to beat the elite four twice
Fire and water are the best combination to beat the elite 4.
The same you can do in Fire Red.Read my answer to that here:What_can_you_do_after_you_beat_the_elite_four_in_pokemon_fire_red
One island.
You have to migrate them, which I think can only be done when you beat the elite four.
Its best if you have 1 fire Pokemon and 1 ground Pokemon.
against the elite four infernape will do very good with its fire type moves but since the first gym is ground it is not so easy to beat it with a fire type. i beat the elite four 6 times with my infernape. the beat moves for it are fire blast and flame wheel
use cheat codes
See question "Is this a good team to beat the elite four"'s answer.
first you need the rubys in fire red but first beat the elite four
You can continue to challenge the Elite Four for money and Exp. Also you can get additional badges (stickers). Hall of Fame Sticker #1 Beat The Elite Four One Time Hall of Fame Sticker #2 Beat The Elite Four Fourty Times Hall of Fame Sticker #3 Beat The Elite Four One Hundred Times Hall of Fame Sticker #4 Beat The Elite Four Two Hundred Times