Medicham-Mega @ Medichamite  
Ability: Telepathy  
EVs: 48 HP / 252 Atk / 208 Spe  
Adamant Nature  
- Substitute  
- Drain Punch  
- Ice Punch  
- Psycho Cut  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 248 HP / 224 SpD / 36 Spe  
Sassy Nature  
- Volt Switch  
- Fleur Cannon  
- Focus Blast  
- Iron Head  

Rotom-Wash @ Electrium Z  
Ability: Levitate  
EVs: 88 HP / 208 SpA / 212 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Thunder  
- Hydro Pump  
- Pain Split  

Serperior @ Choice Scarf  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Leaf Storm  
- Glare  
- Knock Off  
- Defog  

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

Garchomp @ Rocky Helmet  
Ability: Rough Skin  
EVs: 248 HP / 204 Def / 56 Spe  
Impish Nature  
- Stealth Rock  
- Earthquake  
- Flamethrower  
- Toxic