Buzzwole @ Leftovers  
Ability: Beast Boost  
EVs: 4 HP / 252 Atk / 252 Def  
Impish Nature  
- Substitute  
- Focus Punch  
- Earthquake  
- Leech Life  

Magearna @ Choice Specs  
Ability: Soul-Heart  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Dazzling Gleam  
- Flash Cannon  
- Aura Sphere  

Swampert @ Mental Herb  
Ability: Torrent  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Stealth Rock  
- Earthquake  
- Flip Turn  
- Ice Punch  

Latios (M) @ Life Orb  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Psychic  
- Mystical Fire  
- Ice Beam  

Corviknight @ Weakness Policy  
Ability: Mirror Armor  
EVs: 4 Atk / 252 SpD / 252 Spe  
Careful Nature  
- Agility  
- Bulk Up  
- Drill Peck  
- Power Trip  

Blacephalon @ Choice Scarf  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Flamethrower  
- Mind Blown  
- Shadow Ball  
- Psychic