VS. Seeker, Exp. Share, and Macho Brace combined provide a quick and healthy grinding experience combined with EV training.
Basically the same as random battles, but you can at least control what you'll fight.
And if you get an Exp. Share and make the little Pokemon hold it, it'll do that for you without your strong one losing the initiative by having to be sent out.Usually, at the end of the game. I pick a baby pokemon, that let's say is level.. 6?
And I put it up to battle against someone at level.. 50? And then I switch the Pokemon right away, so it doesn't have to battle the other Pokemon. So you take the weak one out of the battle, but still get credit. That's my way of doing it.
Dont kill pokemon with one hit
they have to give you a little bit of a challenge and you'll gain more exp
use exp share to level up your weakest pokemon and alternate it around your pokemon so everythings equal