Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 204 HP / 248 Def / 56 Spe  
Impish Nature  
- Coil  
- Scale Shot  
- Thousand Waves  
- Rest  

Groudon @ Leftovers  
Ability: Drought  
EVs: 240 HP / 92 Atk / 144 Def / 32 Spe  
Impish Nature  
- Thunder Wave  
- Swords Dance  
- Precipice Blades  
- Stone Edge  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 216 HP / 252 SpD / 40 Spe  
Careful Nature  
- Knock Off  
- Sunsteel Strike  
- Morning Sun  
- Thunder Wave  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 160 HP / 252 SpD / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Cosmic Power  
- Meteor Beam  
- Recover  
- Dragon Pulse  

Clefable @ Leftovers  
Ability: Magic Guard  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Stealth Rock  
- Moonblast  
- Soft-Boiled  
- Aromatherapy  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 8 Def / 244 SpD / 8 Spe  
Careful Nature  
- Knock Off  
- Roost  
- Snarl  
- Defog