Zygarde @ Chesto Berry  
Ability: Power Construct  
EVs: 16 HP / 224 Atk / 36 Def / 232 Spe  
Impish Nature  
- Dragon Dance  
- Coil  
- Thousand Arrows  
- Rest  

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

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Stealth Rock  
- Iron Head  
- Toxic  
- 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  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 8 Def / 60 SpD / 192 Spe  
Jolly Nature  
- Defog  
- Knock Off  
- Roost  
- U-turn  

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