No. To make sure that we keep on paying money for cards, the official Pokemon people round out or ban all cards from certain packs every now and then. That means you can only use more recent cards in tournaments.
trading
There is no way of getting all beginner Pokemon without trading.
by trading it
You get by trading it from white.
Only by trading one from Pokemon White.
you can only get Abra by Pokemon transfer or trading
You can only get him on Pokemon white or trading with someone
Boldore,Timburr,Shelmet And Karrablast
You can get Zoroark by trading an Event shiny beast Pokemon to Pokemon Black and White via the Relocator.
Pokemon Black and White are not compatible for trading with any of the other previous games.
Elekid can only be obtained through trading in Pokemon Black. (Or transfering from a game with an Elekid)
You can get Zoroark by trading an Event shiny beast Pokemon to Pokemon Black and White via the Relocator.