Id3191517953's answer
Get the exp.share,give it to the Pokemon you want to level up and beat the Pokemon league but once you get it at a certain level for example i got my charizard to level 59 and then stock up on some healing supplies and a few Pokemon so if your Pokemon your trying to train faints send out the other Pokemon and heal the one that just fainted. but this might take a while but this actually worked for me. good luck!
AgeOfWarMaster's answer
well my way is say you just beat the electric gym and the wild Pokemon are like lvl 15 or higher put like a lvl 1-10 in fighting but before you attack hit the Pokemon button and get out your BEST Pokemon out and kill the lvl 15 or so and get like 150XP+ which will probabily lvl the low lvl Pokemon a few times
use rare candies use rare candies
levels 55-61
Trapinch learns Dig at level 41 in Pokemon Ruby, Sapphire, and Emerald.
In Pokémon Ruby, Magikarp will evolve into Gyarados at Level 20.
level 40
Oddish learns Sweet Scent at Level 7 in Pokémon Ruby.
It depends on the pokemon you're asking about. Many evolve at different levels.
levels 55-61
You can catch Golbat at above that level in Sky Pillar. Its levels will range from 48-56.
Weezing does not evolve in Pokemon Ruby.
it doesn't evolve in Pokemon ruby.
I believe Swinub evolves into Piloswine in Pokemon Ruby at level 33.
You can dominate levels up 50 ! I have a level 72 blaziken! It domenates!!! You can dominate levels up 50 ! I have a level 72 blaziken! It domenates!!! You can dominate levels up 50 ! I have a level 72 blaziken! It domenates!!!
With the seventh badge in Pokemon Ruby version, you can control caught or traded Pokemon up to level 70.
level 70
Koffing evolves at Level 35 in Pokémon Ruby.
A level 72 Blaziken .I have one it domenates levels up to 50. I can make 40s faint in one hit.
You have to level them up, there is no cheat to get them to level 100 instantly