Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 56 Def / 204 SpD  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Overheat  
- Toxic  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Coil  
- Glare  
- Thousand Arrows  
- Rest  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 192 Atk / 56 SpD / 12 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Defog  
- Whirlwind  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 248 HP / 4 Def / 160 SpD / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Calm Mind  
- Recover  
- Refresh  

Necrozma-Dusk-Mane @ Solganium Z  
Ability: Prism Armor  
EVs: 132 HP / 252 Atk / 124 Spe  
Adamant Nature  
- Dragon Dance  
- Sunsteel Strike  
- Earthquake  
- Stone Edge  

Eternatus @ Life Orb  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Recover  
- Sludge Bomb  
- Flamethrower