Rayquaza-Mega @ Choice Scarf  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Hasty Nature  
- Dragon Ascent  
- Draco Meteor  
- Toxic  
- V-create  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 24 Atk / 252 SpA / 232 Spe  
Rash Nature  
- Rock Polish  
- Fire Blast  
- Precipice Blades  
- Hidden Power [Ice]  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
EVs: 252 Atk / 4 SpA / 252 Spe  
Adamant Nature  
- Earthquake  
- Liquidation  
- Ice Beam  
- Thunder  

Arceus-Steel @ Iron Plate  
Ability: Multitype  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Recover  
- Earth Power  
- Judgment  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 248 HP / 168 Def / 92 Spe  
Bold Nature  
IVs: 0 Atk  
- Ice Beam  
- Will-O-Wisp  
- Recover  
- Earth Power  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 252 Def  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Transform