Ho-Oh @ Choice Band  
Ability: Regenerator  
EVs: 40 HP / 252 Atk / 216 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Earthquake  
- Toxic  

Magearna @ Pinsirite  
Ability: Soul-Heart  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Shift Gear  
- Return  
- Pain Split  
- Heal Bell  

Slowbro @ Sablenite  
Ability: Regenerator  
Shiny: Yes  
EVs: 248 HP / 172 Def / 88 SpD  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Scald  
- Ice Beam  
- Slack Off  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 4 Atk / 252 SpA / 252 Spe  
Rash Nature  
- Eruption  
- Stealth Rock  
- Precipice Blades  
- Smack Down  

Mandibuzz @ Metagrossite  
Ability: Big Pecks  
EVs: 248 HP / 68 Def / 88 SpD / 104 Spe  
Timid Nature  
IVs: 0 Atk  
- Foul Play  
- Roost  
- Taunt  
- Defog  

Zygarde @ Altarianite  
Ability: Aura Break  
EVs: 120 HP / 252 Atk / 136 Spe  
Adamant Nature  
- Dragon Dance  
- Extreme Speed  
- Return  
- Thousand Arrows