Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 232 Def / 24 Spe  
Impish Nature  
- Toxic  
- Stealth Rock  
- Precipice Blades  
- Stone Edge  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 192 Atk / 52 SpD / 16 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Thunder Wave  
- Substitute  

Weavile @ Choice Band  
Ability: Pressure  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Beat Up  
- Triple Axel  
- Knock Off  
- Ice Shard  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 76 SpD / 184 Spe  
Jolly Nature  
- Foul Play  
- Sucker Punch  
- Roost  
- Defog  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 240 HP / 172 SpD / 96 Spe  
Timid Nature  
- Flamethrower  
- Dragon Tail  
- Dynamax Cannon  
- Recover  

Necrozma-Dusk-Mane @ Colbur Berry  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Knock Off  
- Sunsteel Strike  
- Morning Sun