Metagross-Mega @ Metagrossite  
Ability: Clear Body  
EVs: 176 HP / 252 Atk / 80 Spe  
Adamant Nature  
- Rock Polish  
- Meteor Mash  
- Hammer Arm  
- Zen Headbutt  

Azumarill (F) @ Sitrus Berry  
Ability: Huge Power  
Shiny: Yes  
EVs: 68 HP / 252 Atk / 188 Spe  
Adamant Nature  
- Belly Drum  
- Aqua Jet  
- Knock Off  
- Play Rough  

Serperior (M) @ Miracle Seed  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk / 30 SpA / 30 Spe  
- Leaf Storm  
- Dragon Pulse  
- Hidden Power [Fire]  
- Taunt  

Landorus (Landorus-Therian) @ Earth Plate  
Ability: Intimidate  
EVs: 152 HP / 252 Atk / 104 Spe  
Adamant Nature  
- Earthquake  
- Stealth Rock  
- Stone Edge  
- U-turn  

Rotom (Rotom-Wash) @ Leftovers  
Ability: Levitate  
EVs: 252 HP / 212 Def / 44 Spe  
Bold Nature  
IVs: 0 Atk  
- Volt Switch  
- Hydro Pump  
- Pain Split  
- Will-O-Wisp  

Hydreigon (M) @ Expert Belt  
Ability: Levitate  
EVs: 96 Atk / 160 SpA / 252 Spe  
Hasty Nature  
- U-turn  
- Dark Pulse  
- Fire Blast  
- Superpower