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

Zygarde @ Dragonium Z  
Ability: Power Construct  
EVs: 12 HP / 216 Atk / 48 SpD / 232 Spe  
Adamant Nature  
- Dragon Dance  
- Thousand Arrows  
- Substitute  
- Dragon Tail  

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

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
EVs: 248 HP / 136 Def / 124 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Will-O-Wisp  
- Earth Power  
- Recover  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
EVs: 248 HP / 236 Def / 24 SpD  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Scald  
- Ice Beam  
- Rest  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 30 SpA / 30 SpD / 1 Spe  
- Transform