Kingdra @ Choice Specs  
Ability: Swift Swim  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Dragon Pulse  
- Hurricane  
- Surf  

Tentacruel @ Heavy-Duty Boots  
Ability: Rain Dish  
Tera Type: Water  
EVs: 252 HP / 240 Def / 16 Spe  
Bold Nature  
- Sludge Bomb  
- Flip Turn  
- Rapid Spin  
- Protect  

Barraskewda @ Expert Belt  
Ability: Swift Swim  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Liquidation  
- Close Combat  
- Psychic Fangs  
- Flip Turn  

Pelipper @ Heavy-Duty Boots  
Ability: Drizzle  
Tera Type: Water  
EVs: 248 HP / 252 Def / 8 SpA  
Bold Nature  
- Hurricane  
- Roost  
- U-turn  
- Knock Off  

Samurott-Hisui @ Choice Band  
Ability: Sharpness  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Ceaseless Edge  
- Sacred Sword  
- Knock Off  
- Flip Turn  

Swampert @ Leftovers  
Ability: Damp  
Tera Type: Water  
EVs: 240 HP / 16 Def / 252 SpD  
Careful Nature  
- Stealth Rock  
- Earthquake  
- Flip Turn  
- Roar