Deoxys-Speed @ Leftovers  
Ability: Wonder Guard  
EVs: 252 HP / 188 Def / 48 SpA / 20 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Baton Pass  
- Taunt  
- Psystrike  

Diancie-Mega @ Leftovers  
Ability: Pixilate  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Pain Split  
- Extreme Speed  
- Fake Out  
- Stealth Rock  

Rayquaza-Mega @ Shed Shell  
Ability: Mold Breaker  
EVs: 184 HP / 4 Def / 252 SpA / 68 Spe  
Rash Nature  
- Shell Smash  
- Oblivion Wing  
- Dark Void  
- Earthquake  

Audino-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Roost  
- Parting Shot  
- Chatter  
- Defog  

Gyarados-Mega @ Lum Berry  
Ability: Huge Power  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Beat Up  
- Pursuit  
- Sucker Punch  
- Water Shuriken  

Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
IVs: 0 Atk  
- Spore  
- Curse  
- Recover  
- Encore