Necrozma-Dusk-Mane @ Safety Goggles  
Ability: Prism Armor  
EVs: 252 HP / 224 Def / 32 Spe  
Impish Nature  
- Dragon Dance  
- Sunsteel Strike  
- Knock Off  
- Morning Sun  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 76 Def / 184 Spe  
Jolly Nature  
- Knock Off  
- Foul Play  
- U-turn  
- Roost  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 252 HP / 52 Def / 108 SpD / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Toxic  
- Flamethrower  
- Recover  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 4 Atk / 184 Def / 52 SpD / 20 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Thunder Wave  
- Defog  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 8 Atk / 112 Def / 136 SpD  
Impish Nature  
- Stealth Rock  
- Toxic  
- Precipice Blades  
- Stone Edge  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
IVs: 0 Atk  
- Leech Seed  
- Spikes  
- Iron Defense  
- Body Press