Pelipper @ Heavy-Duty Boots  
Ability: Drizzle  
Tera Type: Water  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 9 Spe  
- Hurricane  
- U-turn  
- Roost  
- Defog  

Swampert-Mega @ Swampertite  
Ability: Swift Swim  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Waterfall  
- Ice Punch  
- Flip Turn  

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

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  
- Low Kick  

Empoleon @ Heavy-Duty Boots  
Ability: Competitive  
Tera Type: Water  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
- Stealth Rock  
- Flash Cannon  
- Flip Turn  
- Roost  

Manaphy @ Waterium Z  
Ability: Hydration  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Tail Glow  
- Rain Dance  
- Surf  
- Psychic