Walking Wake @ Eject Pack  
Ability: Protosynthesis  
Tera Type: Water  
EVs: 12 HP / 244 SpA / 252 Spe  
Timid Nature  
- Draco Meteor  
- Scald  
- Substitute  
- Knock Off  

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

Gastrodon @ Heavy-Duty Boots  
Ability: Sticky Hold  
Tera Type: Water  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
IVs: 0 Atk  
- Spikes  
- Earth Power  
- Chilling Water  
- Recover  

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

Slowking @ Assault Vest  
Ability: Regenerator  
Tera Type: Water  
EVs: 252 HP / 116 Def / 140 SpD  
Modest Nature  
IVs: 0 Atk  
- Future Sight  
- Scald  
- Psyshock  
- Ice Beam  

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