Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 252 HP / 252 Def / 4 Spe  
Bold Nature  
IVs: 0 Atk  
- Rest  
- Sleep Talk  
- Sheer Cold  
- Scald  

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

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

Eternatus @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 4 SpA / 240 SpD / 12 Spe  
Timid Nature  
- Toxic  
- Flamethrower  
- Dragon Tail  
- Recover  

Necrozma-Dusk-Mane @ Heavy-Duty Boots  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Morning Sun  
- Sunsteel Strike  
- Toxic  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 200 HP / 56 SpD / 252 Spe  
Jolly Nature  
- Snarl  
- Knock Off  
- Roost  
- Defog