In Pokemon Diamond and Pearl, Aaron (which is a bug type user) has Dustox(lvl 53), Beautifly(lvl 53), Drapion(lvl 57), Heracross(lvl 54) and Vespiquen(lvl 55 or 56).
Bertha (ground type has Quagsire(lvl 55), Hippowdon(lvl 59), Whishcash(lvl 55), Golem(lvl 57) and Sudowoodo(lvl 56 or 57).
Flint (fire type) has Rapidash(lvl 58), Infernape(lvl 61), Steelix(lvl 57), Drifblim(lvl 58) and Lopunny(lvl 59). He only has 2 fire type Pokemon but all his Pokemon know fire moves so be careful.
Lucian (psychic) has Mr. Mime(lvl 60), Alakazam(lvl 61), Bronzong(lvl 63), Girafarig(lvl 59 or 60) and Medicham(lvl 60.) His Bronzong is quite hard to take out so be careful on that one.
Cynthia has Spiritomb(lvl 63), Gastrodon(lvl 63), Garchomp(lvl 66), Roserade(lvl 64), Lucario(lvl 65) and Milotic(lvl 61.) Sorry I could not be precise with the levels,
which elite four are you referring to. use bug and fightning move to defeat dark pokemon.
There is are no certain Pokemon needed to defeat the elite four. Just use your strongest Pokemon.
The types of pokemon the Elite Four use in Pokemon Y are: Steel, Fire, Dragon, and Water. The Champion uses a variety of types.
use spongebob and
your strongest Pokemon
Elite Four Sidney/Sydney: Uses Dark Pokemon Elite Four Phoebe: Uses Ghost Pokemon Elite Four Glacia: Uses Ice Pokemon Elite Four Drake: Uses Dragon Pokemon Champion Steven: Uses mostly Steel & Rock Pokemon.
See question "Is this a good team to beat the elite four"'s answer.
Zapdos and Mewtwo
to enter the elite four
There aren't specific Pokemon for battles.You should use your strongest Pokemon.
In terms of Pokemon, the Elite Four are found inside of the Pokemon league. The Elite Four are generally described as the toughest challenge in each of the Pokemon games.
There is no easy way to beat the Elite Four. You have to level up your Pokemon and use the right types of Pokemon against each of the elite four (i.e. don't use a fire-type Pokemon against water-type. Use electric instead). I recommend level 60 or so for the Elites. Good luck!