Politoed @ Sitrus Berry  
Ability: Drizzle  
Level: 50  
EVs: 244 HP / 116 Def / 148 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Helping Hand  
- Icy Wind  
- Protect

Unown
Options:
- offensive: Muddy Water, Ice Beam
- supportive: Perish Song, Encore

Unown
Defensive calcs:
- 252+ Atk Rillaboom Grassy Glide vs. 244 HP / 116+ Def Politoed in Grassy Terrain: 168-198 (85.7 - 101%) -- 6.3% chance to OHKO
- 252 Atk Urshifu-Rapid Strike Close Combat vs. 244 HP / 116+ Def Politoed: 102-121 (52 - 61.7%) -- guaranteed 3HKO after Sitrus Berry recovery
- 252 SpA Transistor Regieleki Thunderbolt vs. 244 HP / 148 SpD Politoed: 168-198 (85.7 - 101%) -- 6.3% chance to OHKO

Unown
Useful partners:
- Rain abusers: Kingdra, Ludicolo, Seismitoad, Zapdos, Mega Empoleon