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

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 16 HP / 240 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Foul Play  
- Defog  
- Roost  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 240 HP / 236 SpD / 32 Spe  
Careful Nature  
- Dragon Dance  
- Sunsteel Strike  
- Knock Off  
- Morning Sun  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 164 HP / 252 SpD / 92 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Toxic  
- Flamethrower  
- Dynamax Cannon  

Calyrex-Shadow @ Life Orb  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 29 HP / 0 Atk  
- Nasty Plot  
- Disable  
- Protect  
- Astral Barrage  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Rest  
- Scald  
- Sleep Talk