Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 192 Atk / 52 SpD / 16 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Thunder Wave  
- Defog  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 120 Def / 136 Spe  
Impish Nature  
- Dragon Dance  
- Sunsteel Strike  
- Earthquake  
- Morning Sun  

Eternatus @ Haban Berry  
Ability: Pressure  
EVs: 228 HP / 36 Def / 68 SpA / 52 SpD / 124 Spe  
Modest Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Mystical Fire  
- Sludge Bomb  
- Recover  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 252 HP / 204 Def / 36 SpD / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Scald  
- Sleep Talk  
- Rest  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 44 Atk / 8 Def / 24 SpD / 184 Spe  
Adamant Nature  
- Knock Off  
- U-turn  
- Roost  
- Defog  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Transform