Pelipper @ Damp Rock  
Ability: Drizzle  
EVs: 248 HP / 252 Def / 8 SpA  
Bold Nature  
- Roost  
- Scald  
- U-turn  
- Hurricane  

Swampert-Mega @ Swampertite  
Ability: Swift Swim  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Earthquake  
- Superpower  
- Ice Punch  
- Waterfall  

Kingdra @ Choice Specs  
Ability: Swift Swim  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Draco Meteor  
- Hydro Pump  
- Ice Beam  
- Flash Cannon  

Magearna @ Electrium Z  
Ability: Soul-Heart  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Calm Mind  
- Shift Gear  
- Thunderbolt  

Tornadus-Therian (M) @ Life Orb  
Ability: Regenerator  
EVs: 252 HP / 84 Def / 172 Spe  
Timid Nature  
- U-turn  
- Knock Off  
- Hurricane  
- Defog  

Serperior @ Light Clay  
Ability: Contrary  
EVs: 252 HP / 4 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Taunt  
- Reflect  
- Light Screen