Omastar @ Choice Specs  
Ability: Swift Swim  
Tera Type: Rock  
EVs: 72 HP / 252 SpA / 184 Spe  
Modest Nature  
IVs: 0 Atk  
- Hydro Pump  
- Ice Beam  
- Earth Power  
- Surf  

Omastar @ White Herb  
Ability: Swift Swim  
Tera Type: Rock  
EVs: 72 HP / 252 SpA / 184 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Surf  
- Ice Beam  
- Earth Power