Azumarill @ Normalium Z  
Ability: Huge Power  
Tera Type: Water  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Belly Drum  
- Aqua Jet  
- Play Rough  
- Substitute  

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

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

Dondozo @ Chesto Berry  
Ability: Unaware  
Tera Type: Water  
EVs: 248 HP / 252 Atk / 8 SpD  
Adamant Nature  
- Earthquake  
- Liquidation  
- Curse  
- Rest  

Greninja (M) @ Life Orb  
Ability: Protean  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Hydro Pump  
- Dark Pulse  
- Spikes  

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