Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 248 HP / 232 Def / 28 Spe  
Bold Nature  
IVs: 0 Atk  
- Roar  
- Rest  
- Scald  
- Calm Mind  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 188 Def / 68 Spe  
Impish Nature  
- Dragon Dance  
- Sunsteel Strike  
- Morning Sun  
- Knock Off  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 20 Def / 44 SpD / 196 Spe  
Jolly Nature  
- Foul Play  
- Roost  
- U-turn  
- Defog  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 SpD / 4 Spe  
Careful Nature  
- Spikes  
- Leech Seed  
- Protect  
- Iron Head  

Groudon @ Leftovers  
Ability: Drought  
EVs: 240 HP / 252 Def / 16 Spe  
Impish Nature  
- Stealth Rock  
- Earthquake  
- Rest  
- Toxic  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Thunder Wave  
- Aromatherapy  
- Focus Blast