Diancie @ Leftovers  
Ability: Clear Body  
Tera Type: Water  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Guard Split  
- Diamond Storm  
- Body Press  
- Encore  

Rillaboom @ Assault Vest  
Ability: Grassy Surge  
Tera Type: Fire  
EVs: 252 HP / 132 Atk / 44 Def / 80 SpD  
Adamant Nature  
- Fake Out  
- Wood Hammer  
- U-turn  
- Knock Off  

Mew @ Sitrus Berry  
Ability: Synchronize  
Tera Type: Dark  
EVs: 252 HP / 80 Def / 176 SpD  
Bold Nature  
IVs: 0 Atk  
- Pollen Puff  
- Will-O-Wisp  
- Snarl  
- Tailwind  

Flutter Mane @ Grassy Seed  
Ability: Protosynthesis  
Tera Type: Water  
EVs: 252 HP / 136 Def / 56 SpA / 64 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Dazzling Gleam  
- Shadow Ball  
- Protect  

Landorus-Therian @ Assault Vest  
Ability: Intimidate  
Tera Type: Water  
EVs: 252 HP / 180 Atk / 76 Spe  
Adamant Nature  
- Stomping Tantrum  
- Stone Edge  
- Brick Break  
- U-turn  

Basculegion-F (F) @ Choice Scarf  
Ability: Adaptability  
Tera Type: Water  
EVs: 168 Atk / 120 SpA / 220 Spe  
Hasty Nature  
- Last Respects  
- Wave Crash  
- Hydro Pump  
- Shadow Ball