Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Spikes  
- Leech Seed  
- Curse  
- Knock Off  

Marshadow @ Leftovers  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Substitute  
- Swagger  
- Force Palm  
- Spectral Thief  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 252 HP / 140 SpA / 116 Spe  
Modest Nature  
IVs: 0 Atk  
- Thunder Wave  
- Calm Mind  
- Surf  
- Substitute  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 16 HP / 240 SpD / 252 Spe  
Jolly Nature  
- Taunt  
- Knock Off  
- Sucker Punch  
- Roost  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 164 HP / 252 SpD / 92 Spe  
Timid Nature  
- Dynamax Cannon  
- Flamethrower  
- Dragon Tail  
- Recover  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 224 Def / 32 Spe  
Impish Nature  
- Sunsteel Strike  
- Thunder Wave  
- Stealth Rock  
- Moonlight