Metagross-Mega @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 240 Def / 16 Spe  
Impish Nature  
IVs: 0 Atk  
- Dark Void  
- Quiver Dance  
- Substitute  
- Baton Pass  

Rayquaza-Mega @ Life Orb  
Ability: Mold Breaker  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Quiver Dance  
- Oblivion Wing  
- Taunt  
- Searing Shot  

Slaking @ Silk Scarf  
Ability: Shadow Tag  
EVs: 252 Atk / 216 Def / 40 Spe  
Adamant Nature  
- Fake Out  
- Extreme Speed  
- Low Kick  
- Spikes  

Swampert-Mega @ Leftovers  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 4 SpD  
Brave Nature  
IVs: 0 Spe  
- Thousand Arrows  
- Substitute  
- Baton Pass  
- Stealth Rock  

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

Rayquaza-Mega @ Mental Herb  
Ability: Mold Breaker  
EVs: 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Oblivion Wing  
- Dark Void  
- Substitute  
- Shell Smash