Gengar-Mega @ Spooky Plate  
Ability: Mold Breaker  
EVs: 12 HP / 4 Def / 240 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Tail Glow  
- Judgment  
- Secret Sword  
- Taunt  

Deoxys-Speed @ Leftovers  
Ability: Wonder Guard  
EVs: 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Baton Pass  
- Psystrike  
- Taunt  

Rayquaza-Mega @ Sky Plate  
Ability: Mold Breaker  
EVs: 64 HP / 252 SpA / 192 Spe  
Modest Nature  
IVs: 0 Atk  
- Dark Void  
- Quiver Dance  
- Oblivion Wing  
- Substitute  

Regigigas @ Leftovers  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 8 SpD  
Adamant Nature  
- Extreme Speed  
- Shadow Sneak  
- Bullet Punch  
- Spore  

Ferrothorn @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 168 Def / 92 SpD  
Relaxed Nature  
IVs: 0 Atk  
- Whirlwind  
- Roost  
- Baton Pass  
- Magic Coat  

Swampert-Mega @ Expert Belt  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def  
Impish Nature  
- Thousand Waves  
- Stealth Rock  
- Defog  
- Roost