Cannot get 3rd badge

[CJ6633 0]

I have been trying for two weeks and have not been able to beat it I have a full team of 6 levels:

Charizard level 34

Ponyta level 32

Munna level 34

Teddiursa level 30

Ducklett level 34

Primape level 29 

and i can never get past it can anyone help?

[Combat 62]

There's a dedicated sub forum for questions like this that you may want to move this to. Anyways, for the sake of brevity, I'll give you a little advise. Assuming you're talking about Corey, you'll need to let us know what type of field he is using. Depending on your choices in-game, he will use different field effects. Outside of his gym is some grass that has wild Phanpys in it. Catch one and evolve it. Roll out can easily sweep his team with some luck.

[Boa Hancock 14]

ahhh corey is pain

yes but also, your team at the moment is quite frail

eg. teddirusa, ducklett, ponyta are quite frail and by this time you've got better options for pokemon

i suggest as said^ phanpy (evolve to donphan)

or if possible you could trade a strong psychic type or ground type like drillbur

or you can use a bunellby (diggersby) with earthquake and ability: huge power

[Farnsworth 75]

A good ground type that is available before Corey is Diggersby. Catch a Bunnelby with Huge Power, and evolve it at level 33 (when it learns dig). It should have an easy time with Corey.

 

For his Crobat you can try using Ampharos.

[Maltor 7]

Graveler/Golem did wonders for me in that fight; and i think i was able to get Mr. Mime before this fight too (i can't remember if North Obsidia pulse comes before Corey's fight)