Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Eruption  
- Rest  
- Stone Edge  
- Precipice Blades  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Sunsteel Strike  
- Knock Off  
- Stealth Rock  
- Morning Sun  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 248 HP / 124 Def / 136 Spe  
Bold Nature  
IVs: 0 Atk  
- Ice Beam  
- Defog  
- Toxic  
- Recover  

Ditto @ Choice Scarf  
Ability: Imposter  
Hidden Power: Steel  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
IVs: 30 Atk  
- Transform  

Lugia @ Heavy-Duty Boots  
Ability: Multiscale  
EVs: 252 HP / 252 Def / 4 Spe  
Impish Nature  
IVs: 0 Atk  
- Substitute  
- Toxic  
- Roost  
- Whirlwind  

Arceus-Ghost @ Ghostium Z  
Ability: Multitype  
EVs: 252 Atk / 8 SpD / 248 Spe  
Adamant Nature  
- Swords Dance  
- Substitute  
- Shadow Force  
- Brick Break