Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 204 Def / 56 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Whirlwind  

Shedinja @ Heavy-Duty Boots  
Ability: Wonder Guard  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Protect  
- Will-O-Wisp  
- Shadow Sneak  
- Spite  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 240 HP / 252 SpD / 16 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Toxic  
- Recover  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Morning Sun  
- Earthquake  
- Knock Off  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Precipice Blades  
- Stone Edge  
- Swords Dance  
- Substitute  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 80 Def / 180 SpD  
Careful Nature  
IVs: 0 Atk  
- Snarl  
- Roost  
- Toxic  
- Foul Play