This is prolly not the best, but this is what moveset I ran for Politoed and it worked out just fine for me at least.
Ability: Absorb Water
Held Item: Leftovers
Okay, so what I would do in battle is that I can either use Hypnosis or Swagger first, but lets say I use Hypnosis first. Opp. goes to sleep,then I use swagger, WHILE its asleep so when it wakes up it'll MOSTLY still be confused and it'll give you that CHANCE of the opp. pokemon to hit itself. If that task is successful and it does hit itself, you have the choice between Ice beam, Brick Break and or Hypnosis depending on the situation. I would honestly use Hypnosis if you know brick break or ice beam wont be super effective. Also the Leftovers Item will be healing you little by little as your Opp's pokemon are Asleep/Confused. This move set is not the BEST but its different from the others and it works.