I just made a rain team, and so far with this team I am 5-0. Here is my team:
Politoed @ Leftovers
Ability: Drizzle
EVs: 252 HP / 252 SAtk / 4 SDef
Modest Nature
- Hydro Pump
- Ice Beam
- Psychic
- Hidden Power [Grass]
My Politoed basically starts out with a Rain Dance with it's ability...