What pokemon should I raise to challenge the Elite 4?

Well, I think you should have these pokemons to easily beat the elite 4:

A charizard

A blastoise or feraligater

A venusaur

A haunter or an Alakazam

A blaziken would be helpful

Any of umbreon, vaporeon, flareon, leafeon or glaceon would be helpful too.

Try meganium

try to have them reach to a high level(somewhere from level 70-100) by training so that it can reach to its maximum power. In that, you could easily beat the elite 4.

No, don't get rid of your roselia, maybe you should evolve it to roserade and try to use gengar and luxray too... Palkia is also helpful....It's really powerful

Evolve the roselia to roserade

Keep infernape and reserade

Keep luxrray

gengar

azelf and you need a water pokemon that know only water type moves like a buziel

Recomened water type moves

water pulse

Surf

Hydro pump / or hyrdro cannon

brine

I don't know what pokemon to use for th Elite 4 but if you have an exp.share to give to a weak pokemon and he will raise levels like thunder. You will see.

keep roserlina. i have roserade and she help so much. make them all like level 65. infernape needs to learn flame wheel for the first trainers. roserlina needs mega drain for the second. i am saying this cause its there weakness.

mmm ur team is fine

its just... i think u gotta raise ur team. And evolve ur roselia. I like Roserade lol =D

well....when ur level gets higher than lv 68. Then go challenge them.

you should put in a flying type besides palkia like staraptor or pidgeot,swellow

Mu two