Araquanid @ Custap Berry  
Ability: Water Bubble  
Tera Type: Water  
EVs: 252 HP / 40 Def / 216 SpA  
Modest Nature  
IVs: 0 Atk  
- Sticky Web  
- Surf  
- Endeavor  
- Endure  

Swampert @ Heavy-Duty Boots  
Ability: Torrent  
Tera Type: Water  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
IVs: 25 Spe  
- Flip Turn  
- Stealth Rock  
- Earthquake  
- Knock Off  

Samurott-Hisui @ Heavy-Duty Boots  
Ability: Sharpness  
Tera Type: Water  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Ceaseless Edge  
- Sacred Sword  
- Sucker Punch  
- Swords Dance  

Ogerpon-Wellspring (F) @ Wellspring Mask  
Ability: Water Absorb  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Ivy Cudgel  
- Horn Leech  
- Superpower  

Basculegion-F (F) @ Choice Specs  
Ability: Adaptability  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
- Shadow Ball  
- Flip Turn  
- Hydro Pump  
- Ice Beam  

Quaquaval @ Choice Scarf  
Ability: Moxie  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Aqua Step  
- Close Combat  
- Ice Spinner  
- Rapid Spin