Deoxys-Speed @ Focus Sash  
Ability: Arena Trap  
EVs: 248 HP / 8 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Spore  
- Perish Song  
- Substitute  
- Volt Switch  

Sceptile-Mega @ Focus Sash  
Ability: Arena Trap  
EVs: 248 HP / 8 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Spore  
- Substitute  
- Volt Switch  
- Perish Song  

Aggron-Mega @ Focus Sash  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Sticky Web  
- Stealth Rock  
- Toxic Spikes  
- Topsy-Turvy  

Mewtwo-Mega-X @ Life Orb  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Extreme Speed  
- Shadow Sneak  
- Ice Shard  

Giratina @ Leftovers  
Ability: Prankster  
EVs: 248 HP / 8 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Whirlwind  
- Topsy-Turvy  
- Night Shade  
- Haze  

Rayquaza-Mega @ Lum Berry  
Ability: Adaptability  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Shift Gear  
- Substitute  
- Dragon Ascent  
- Outrage