Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 240 HP / 184 Def / 84 Spe  
Bold Nature  
IVs: 0 Atk  
- Rest  
- Thunder  
- Calm Mind  
- Scald  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
- Transform  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
IVs: 0 Atk  
- Body Press  
- Leech Seed  
- Iron Defense  
- Spikes  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 40 HP / 252 SpA / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Meteor Beam  
- Dynamax Cannon  
- Flamethrower  
- Recover  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Sunsteel Strike  
- Moonlight  
- Stealth Rock  
- Toxic  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 96 HP / 160 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Roost  
- Toxic  
- Defog