Dracovish @ Choice Scarf  
Ability: Strong Jaw  
Tera Type: Water  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Fishious Rend  
- Psychic Fangs  
- Earthquake  
- Ice Fang  

Blastoise-Mega @ Blastoisinite  
Ability: Mega Launcher  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Dark Pulse  
- Shell Smash  
- Water Pulse  
- Aura Sphere  

Lapras-Gmax @ Leftovers  
Ability: Hydration  
Tera Type: Water  
EVs: 128 HP / 128 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Freeze-Dry  
- Toxic  
- Protect  
- Hydro Pump  

Basculegion (M) @ Choice Scarf  
Ability: Adaptability  
Tera Type: Water  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Aqua Jet  
- Last Respects  
- Wave Crash  
- Flip Turn  

Archaludon @ Leftovers  
Ability: Stamina  
Tera Type: Water  
EVs: 4 HP / 252 Def / 252 SpA  
Bold Nature  
IVs: 0 Atk  
- Electro Shot  
- Body Press  
- Stealth Rock  
- Draco Meteor  

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