What's the deal with the gym leader's pokemon's lvl being "question marks"? This makes it very hard to tell what lvl I should train my pokemon to so I can be ready for the gym. I just battled Sabrina and I lost. I have absolutely no idea how I am going to beat her. I do not have her weakness. This is my team at the moment:

Charizard lv62 | Vileplume lv.51 | Quagsire lv55 | Jolteon lv39

 

These gym leaders tells me that the elite 4 is going to be brutal for me. D:

 

Any advice on how to beat her? Or pokemon suggestions and level? Thank you!

I too am also interested by this answer as it makes the gyms very unpredictable... either i over level them and it's a cake walk or i get destroyed in 1 second :/

For Sabrina, you may catch a Murkrow during night in the route near bicycle road (please refer to Mile's spawn list). Just use his/her dark ability.

Or else you may buy some cheap dark pkm to hit her gym.

 

(I brought a senesal--caught by me during helloween event and his level was about 60. He beat down all trainers in Sabrina's gym @@)

 

Anyway please use dark pkm or mvoes.

Okay, I'll try getting a Murkow but not sure how much help it'll be since I wont be able to evolve it or how i can train it, since I'm still having a hard time training my Jolteon. I'd buy one, but I don't have that much money at the moment and I want to save it for the Hat form the Christmas event (already got the outfit).

Also is it just me, or the gym leaders pokemon have moves in their moveset their not suppose to have?

its not need to be dark. you can also sweep her entire pokemon by physical ground type move like Sandshrew earthquake.