Toxapex @ Icium Z  
Ability: Regenerator  
Tera Type: Water  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Scald  
- Poison Jab  
- Recover  
- Haze  

Rotom-Wash @ Choice Scarf  
Ability: Levitate  
Tera Type: Water  
EVs: 200 HP / 60 SpA / 248 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Hydro Pump  
- Trick  
- Defog  

Tapu Fini @ Leftovers  
Ability: Misty Surge  
Tera Type: Water  
EVs: 112 HP / 136 Def / 196 SpA / 64 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Draining Kiss  
- Surf  
- Taunt  

Gastrodon @ Leftovers  
Ability: Sticky Hold  
Tera Type: Water  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Spikes  
- Mirror Coat  
- Recover  
- Earthquake  

Gyarados-Mega @ Gyaradosite  
Ability: Mold Breaker  
Tera Type: Water  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Crunch  
- Temper Flare  
- Substitute  

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