Rayquaza-Mega @ Choice Band  
Ability: Mold Breaker  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Dragon Ascent  
- Sacred Fire  
- Crabhammer  
- U-turn  

Mewtwo-Mega-X @ Lum Berry  
Ability: Huge Power  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Drain Punch  
- Gunk Shot  
- Thousand Arrows  
- Extreme Speed  

Xerneas @ Leftovers  
Ability: Wonder Guard  
EVs: 180 Def / 252 SpA / 76 Spe  
Modest Nature  
IVs: 0 Atk / 0 Spe  
- Substitute  
- Shell Smash  
- Moonblast  
- Baton Pass  

Arceus-Ghost @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Stealth Rock  
- Defog  
- Aromatherapy  
- Recover  

Gyarados-Mega @ Lum Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 4 Def  
Adamant Nature  
- Gastro Acid  
- Pursuit  
- Knock Off  
- Water Shuriken  

Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
- Will-O-Wisp  
- Encore  
- Curse  
- Recover