Politoed @ Wacan Berry  
Ability: Drizzle  
Tera Type: Water  
EVs: 56 HP / 200 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Earth Power  
- Hydro Pump  
- Helping Hand  

Blastoise @ Shell Bell  
Ability: Rain Dish  
Tera Type: Water  
EVs: 220 HP / 36 Def / 252 SpA  
Modest Nature  
IVs: 0 Atk  
- Flash Cannon  
- Aura Sphere  
- Hydro Pump  
- Aqua Ring  

Pikachu @ Light Ball  
Ability: Static  
Tera Type: Water  
EVs: 200 Atk / 200 SpA / 108 Spe  
Naive Nature  
- Thunderbolt  
- Quick Attack  
- Fake Out  
- Draining Kiss  

Pelipper @ Damp Rock  
Ability: Drizzle  
Tera Type: Water  
EVs: 84 HP / 252 SpA / 172 Spe  
Modest Nature  
IVs: 0 Atk  
- Air Slash  
- Tailwind  
- Surf  
- Blizzard  

Gastrodon @ Rindo Berry  
Ability: Storm Drain  
Tera Type: Water  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Earth Power  
- Stockpile  
- Spit Up  
- Recover  

Ludicolo @ Leftovers  
Ability: Swift Swim  
Tera Type: Water  
EVs: 26 HP / 230 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Chilling Water  
- Energy Ball  
- Hyper Voice  
- Giga Drain