Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Earthquake  
- Hidden Power [Ghost]  
- Swords Dance  
- Protect  

Heracross @ Salac Berry  
Ability: Swarm  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Megahorn  
- Rock Slide  
- Substitute  
- Swords Dance  

Magneton @ Petaya Berry  
Ability: Magnet Pull  
EVs: 12 HP / 252 SpA / 244 Spe  
Modest Nature  
- Thunder  
- Hidden Power [Fire]  
- Substitute  
- Toxic  

Latios (M) @ Soul Dew  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Thunder  
- Dragon Claw  
- Recover  
- Refresh  

Metagross @ Leftovers  
Ability: Clear Body  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Meteor Mash  
- Toxic  
- Explosion  
- Pursuit  

Deoxys-Attack @ Choice Band  
Ability: Pressure  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Shadow Ball  
- Superpower  
- Double-Edge  
- Extreme Speed