Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 232 SpA / 72 SpD / 204 Spe  
Timid Nature  
IVs: 0 Atk  
- Dark Pulse  
- Oblivion Wing  
- Taunt  
- Roost  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 188 Def / 52 SpD / 20 Spe  
Impish Nature  
- Sacred Fire  
- Thunder Wave  
- Defog  
- Brave Bird  

Necrozma (Necrozma-Dusk-Mane) @ Rocky Helmet  
Ability: Prism Armor  
EVs: 204 HP / 252 Def / 52 Spe  
Impish Nature  
- Dragon Dance  
- Sunsteel Strike  
- Earthquake  
- Morning Sun  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 248 HP / 112 Def / 100 SpD / 48 Spe  
Calm Nature  
IVs: 0 Atk  
- Cosmic Power  
- Dragon Pulse  
- Meteor Beam  
- Recover  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 240 HP / 248 Def / 20 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Scald  
- Thunder  
- Rest  

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