Chansey @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Soft-Boiled  
- Metal Burst  
- Fake Out  
- U-turn  

Regigigas @ Lum Berry  
Ability: Illusion  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
- Belly Drum  
- Extreme Speed  
- Crunch  
- High Jump Kick  

Registeel @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Destiny Bond  
- Recover  
- Haze  
- U-turn  

Groudon @ Lum Berry  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Heart Swap  
- Nature Power  
- Baton Pass  
- Recover  

Rayquaza @ Flying Gem  
Ability: Unburden  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Acrobatics  
- Close Combat  
- Magic Coat  

Arceus @ Lum Berry  
Ability: Scrappy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Rapid Spin  
- Extreme Speed  
- Swords Dance  
- Earthquake