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  
- Stealth Rock  
- Ice Punch  
- Waterfall  

Magearna @ Electrium Z  
Ability: Soul-Heart  
EVs: 52 HP / 252 SpA / 4 SpD / 200 Spe  
Modest Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Calm Mind  
- Shift Gear  
- Thunderbolt  

Tornadus-Therian (M) @ Rocky Helmet  
Ability: Regenerator  
EVs: 240 HP / 64 Def / 204 Spe  
Timid Nature  
- U-turn  
- Knock Off  
- Hurricane  
- Defog  

Tapu Koko @ Choice Specs  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- U-turn  
- Thunder  
- Hidden Power [Ice]  
- Dazzling Gleam  

Greninja-Ash (M) @ Choice Specs  
Ability: Battle Bond  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Hydro Pump  
- Spikes  
- Dark Pulse  
- Water Shuriken