Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 36 Def / 220 SpD  
Careful Nature  
- Stealth Rock  
- Precipice Blades  
- Stone Edge  
- Rest  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 132 Def / 124 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Refresh  
- Toxic  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
IVs: 30 Atk  
- Transform