Kyogre @ Choice Scarf  
Ability: Drizzle  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Water Spout  
- Origin Pulse  
- Ice Beam  
- Thunder  

Pelipper (M) @ Damp Rock  
Ability: Drizzle  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Toxic  
- U-turn  
- Roost  
- Defog  

Swampert-Mega (M) @ Swampertite  
Ability: Swift Swim  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Aqua Tail  
- Earthquake  
- Superpower  
- Stealth Rock  

Omastar (M) @ Choice Specs  
Ability: Swift Swim  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Hydro Pump  
- Scald  
- Ice Beam  
- Earth Power  

Azumarill (F) @ Choice Band  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 8 Spe  
Adamant Nature  
- Liquidation  
- Aqua Jet  
- Play Rough  
- Superpower  

Greninja-Ash @ Waterium Z  
Ability: Battle Bond  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Hydro Pump  
- Water Shuriken  
- Dark Pulse  
- Spikes