Keldeo @ Choice Specs  
Ability: Justified  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hydro Pump  
- Vacuum Wave  
- Secret Sword  
- Icy Wind  

Tentacruel @ Black Sludge  
Ability: Liquid Ooze  
Tera Type: Water  
EVs: 252 HP / 240 Def / 16 Spe  
Bold Nature  
- Rapid Spin  
- Toxic Spikes  
- Flip Turn  
- Sludge Bomb  

Empoleon @ Heavy-Duty Boots  
Ability: Competitive  
Tera Type: Water  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Surf  
- Flash Cannon  
- Roost  

Suicune @ Leftovers  
Ability: Pressure  
Tera Type: Water  
EVs: 252 HP / 40 SpD / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Scald  
- Calm Mind  
- Protect  
- Substitute  

Rotom-Wash @ Choice Scarf  
Ability: Levitate  
Tera Type: Electric  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Trick  
- Volt Switch  
- Will-O-Wisp  
- Hydro Pump  

Quagsire @ Heavy-Duty Boots  
Ability: Unaware  
Tera Type: Water  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Earthquake  
- Toxic  
- Recover  
- Spikes