Rodri

You should consider post your team in order to get that help. Perhaps an Echoed Voice can help you against Keta's Soul; did you catch Rockruf? Can you beat Novae and get an Eevee? Do you know how to breed and get a Glare on Servine? Do you have patience to get Rare Candies with Pick Up (Lillipup, Pachirisu and Meowth)? You don't seem to be getting the best of Rejuv. Man does it feels great to beat Madame X and see her recognizing the understimation (Huf.. Huf..)! It-is-worthy.

Is Slakoth that hard to find with headbutts?