Pelipper @ Heavy-Duty Boots  
Ability: Drizzle  
Tera Type: Water  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Roost  
- U-turn  
- Hurricane  
- Knock Off  

Ogerpon-Wellspring (F) @ Wellspring Mask  
Ability: Water Absorb  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Ivy Cudgel  
- Power Whip  
- Play Rough  

Keldeo @ Heavy-Duty Boots  
Ability: Justified  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Surf  
- Secret Sword  
- Taunt  

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

Greninja @ Choice Specs  
Ability: Protean  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Switcheroo  
- Ice Beam  
- Sludge Wave  
- Dark Pulse  

Swampert @ Eject Button  
Ability: Torrent  
Tera Type: Water  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Earthquake  
- Knock Off  
- Stealth Rock  
- Flip Turn