Now now, Read this info to knock out the elite 4 without a sweat:
Aaron (elite1): type: bug
pokemon: dustox, beautifly, vespiqueen, heracross, drapion
recommended types: fire or flying
other: if you can get your hands on a charzard, it works perfectly
toughest: drapion: weak to ground type moves
Bertha (elite2): type: ground
pokemon: quagsire, sudowoodo, golem, whiscash, hippowdon
recommended types: grass or water
other: take out torterra and easily wipe out Bertha
toughest: hippowdon: when hippowdon comes out so does a sandstorm
Flint (elite3): type: fire
pokemon: rapidash, steelix, drifblim, lopunny, inferape
recommended types: water or ground
other: in the past i've even used a fire type to fight and its fairly effective
(bonus)info: R,I, and S are weak to ground while drifblim is weak to ghost or dark
and lopunny is weak to fighting.
Lucian (elite4): type: psychic
pokemon: mr mime, girafafig, medicham, alakazam, bronzong
recommended types: ghost or dark
other:they are all weak to ghost except bronzong and girafafig, B weak is
weak to fire and G is weak to dark, bite will kill him usually.
Cynthia (elitechamp):type: varied
recommended types: ???
pokemon: spiritomb, roserade, gastrodon, lucario, milotic, garchomp
other: she has all different type of pokemon
toughest: varies to your team
info: here we go: Spiritomb has no weakness. Any good,strong atk will do against him. Roserade is, obviously, weak to fire, but also weak to ice, flying, and psychic. Gastrodon is weak to grass and only grass. Lucario is weak to fire, fighting, and ground. Milotic is weak to grass and electric. And last, but not least, Garchomp is weak to ice and dragon types.
Thats all for the night folks and thanks, Hope this helps anyone in need.