Metagross @ Shell Bell  
Ability: Clear Body  
EVs: 252 HP / 252 Atk / 4 Spe  
Adamant Nature  
- Meteor Mash  
- Earthquake  
- Explosion  
- Protect  

Zapdos @ Lum Berry  
Ability: Pressure  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 2 Atk / 30 Def  
- Thunderbolt  
- Hidden Power [Ice]  
- Light Screen  
- Protect  

Arcanine @ White Herb  
Ability: Intimidate  
EVs: 44 Atk / 228 SpA / 236 Spe  
Rash Nature  
- Overheat  
- Heat Wave  
- Extreme Speed  
- Protect  

Walrein @ Leftovers  
Ability: Thick Fat  
EVs: 252 HP / 252 SpA / 4 Spe  
Modest Nature  
IVs: 2 Atk / 30 SpA  
- Ice Beam  
- Waterfall  
- Hidden Power [Grass]  
- Protect