Glalie-Mega @ Glalitite  
Ability: Refrigerate  
EVs: 252 HP / 252 Atk / 4 Def  
Adamant Nature  
- Explosion  
- Ice Shard  

Golem @ Choice Band  
Ability: Sturdy  
EVs: 252 HP / 252 Atk / 4 Def  
Adamant Nature  
- Explosion  
- Earthquake  

Metagross @ Choice Band  
Ability: Clear Body  
EVs: 252 HP / 252 Atk  
Adamant Nature  
- Explosion  
- Bullet Punch  

Gigalith @ Choice Band  
Ability: Sturdy  
Shiny: Yes  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Explosion  

Landorus-Therian @ Normal Gem  
Ability: Intimidate  
- Stealth Rock  
- Explosion  
- Earthquake  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Ice Beam  
- Thunderbolt  
- Shift Gear  
- Calm Mind