The Boss (Latios) (M) @ Lum Berry  
Ability: Levitate  
EVs: 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Psychic  
- Dragon Claw  
- Thunderbolt  

Diamond (Suicune) @ Leftovers  
Ability: Pressure  
EVs: 100 HP / 252 SpA / 152 Spe  
Modest Nature  
IVs: 0 Atk / 30 Def  
- Calm Mind  
- Substitute  
- Surf  
- Ice Beam  

Metagross @ Choice Band  
Ability: Clear Body  
EVs: 252 Atk / 252 Spe  
Adamant Nature  
IVs: 7 SpA  
- Earthquake  
- Meteor Mash  
- Aerial Ace  
- Explosion