pokey (Xerneas) @ Pixie Plate  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Boomburst  
- Nuzzle  
- Bolt Strike  
- Strength Sap  

Regigigas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Facade  
- Nuzzle  
- Knock Off  
- Flip Turn  

Palkia @ Lustrous Orb  
Ability: Adaptability  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Fishious Rend  
- Dragon Energy  
- Taunt  
- Strength Sap  

Zamazenta-Crowned @ Flame Orb  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Anchor Shot  
- Topsy-Turvy  
- Defog  
- Recover  

Groudon @ Soft Sand  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Thousand Arrows  
- Topsy-Turvy  
- Shore Up  
- Entrainment  

Melmetal @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Nuzzle  
- Spectral Thief  
- Core Enforcer  
- U-turn