fainting the opposing Pokemon (I think you need to look at the related link below to)
You don't.
Sorry but no. Maybe they will have a fight with N in Pokemon BLACK WHITE 2
In N's Castle where Zoroark went
Make them fight in battles to gain EXP (experience points). Once they get enough, they'll level up.
when you get to raquaza save then fight him if he is not black restart the game until he is
Don't fight with grass,fire,fight but I think water will do.
you fight ghetsis
You don't.
Sorry but no. Maybe they will have a fight with N in Pokemon BLACK WHITE 2
You give it to another pokemon in your party and i exponentially halves the experience, effectively allowing the pokemon to get some experience even if it didn't participate in a fight.
Fight strong opponents and have your Pokemon hold lucky egg.
The experience is different
fighting and bug types
put it first then fight
you get to fight ash, but he apears as pokemon trainer red.
only by cheat codes
Flying and psycic