are those the nature or what? if so then what does they give?

Nature its the orange and green you asking about as i said orange decrease 10% and green increase 10%

what should charmander, squirtle, jolteon, gastly, dratini and mew have?

 

The common build for them;Charmander timid/jolly, squirtle is bold, jolteon timid, gastly timid, dratini adamant/jolly, mew timid/bold

 

i mean these....

are those the nature or what? if so then what does they give?

 

I hope this will answer your question

is it hard to get those nature u wrote for them?

is it hard to get those nature u wrote for them?

 

Not really, read the first link i post here or this

I heard l can change the nature by Synchronize (ability) , is it true? if so do l have to put the pokemon with that ability first and then battle and catch the pokemon? to make the pokemon the same nature as me?

I heard l can change the nature by Synchronize (ability) , is it true? if so do l have to put the pokemon with that ability first and then battle and catch the pokemon? to make the pokemon the same nature as me?

 

Yes, but you cant call it changing the nature.

I heard l can change the nature by Synchronize (ability) , is it true? if so do l have to put the pokemon with that ability first and then battle and catch the pokemon? to make the pokemon the same nature as me?

It's a 50% chance that they inherit the same nature as your Synchronize pokemon. :Angel:

Isnt there a website that shows which nature a pokemon should have to be good?

Isnt there a website that shows which nature a pokemon should have to be good?

 

You can search in smogon(a website) for the build about the pokemon you want.