Slayer is the easiest and best way. You train a multitude of combat skills as well as your Slayer level.
Give them rare candies which increase a pokemons level by one.
Easy. Give him or her an Experience Share, then battle a high level pokemon.
There is an easy way to get your Pokemon to a certain level. All you need to do is collect rare candy and use it on the Pokemon you want to level. This will automatically level up your Pokemon.
keep battling Pokemon and people
well u could train alot or
You just have to do tasks for various sims by collecting esscences and building furniture for them!!! there is no easy way to level up. :(
way too easy.. just level up the bros and bowser to level 40.
An easy way to level up is to the the dragon egg quest saga (when you are a noobie) and then after that you can go to Oaklore and do the quest "explore ruins" from the guy in the catapult to the left. :)
Easy way to do this is to give it the item exp share then use your stronger Pokemon to defeat trainers your wingull soon will level up and evolve.
Battle the Elete Four over and over again and eventually your Pokémon will get to lv. 100.
The easiest way that I have found to level up quick is to play Headquarters Pro or capture the flag. If you are wanting to level up quick I would play one of those, I wouldn't play Teamdeath Match or Free for All, if you want to level up quick.
Yes the easy level is way easier than playing on legendary