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

Toxapex @ Rocky Helmet  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Recover  
- Scald  
- Haze  
- Toxic Spikes  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 72 HP / 252 SpD / 184 Spe  
Timid Nature  
- Roost  
- Foul Play  
- Sucker Punch  
- U-turn  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Sunsteel Strike  
- Morning Sun  
- Earthquake  
- Swords Dance  

Groudon @ Leftovers  
Ability: Drought  
EVs: 240 HP / 252 Def / 16 Spe  
Impish Nature  
- Stealth Rock  
- Thunder Wave  
- Precipice Blades  
- Stone Edge  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 204 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Defog  
- Thunder Wave  
- Whirlwind