Catch em all?

[DreUchiha]

Just wandering what games are needed to complete a pokedex currently I have X and Alpha Saphire.

 

[Trumma]

Well now you're gonna need Sun or Moon for the new gen mons. But other then that, GTS works wonders when filling up your dex.

 

[Becidot]

You'll definitely need Sun/Moon, but I THINK at a push you could do trades to finish the dex with what you have + sun/moon

 

[Zaesha]

With all the legendaries they included in Gen VI, the event pokemon being released now month by month, the safari zones in X/Y and such, i think you don't need much more than you already have (Sun/Moon aside of course)

 

[MadCow17]

all i had was Y and Omega Ruby and i managed to complete my living dex with the help of gts and this 20th anniversary so its absolutely possible, Also with sun or moon you can easily get all the mons for those too. Good Luck

 

[Terry C aka the breeder]

well for now just sun or moon and the gts. at least until the bank opens up