Radiant (Diancie-Mega) @ Shed Shell  
Ability: Pixilate  
EVs: 248 HP / 252 Atk / 8 SpA  
Lonely Nature  
- Fake Out  
- Extreme Speed  
- Boomburst  
- Toxic Spikes  

Boss Battle (Rayquaza-Mega) @ Choice Specs  
Ability: Mold Breaker  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Volt Switch  
- Chatter  
- Flash Cannon  

Gulp (Gyarados-Mega) @ Lum Berry  
Ability: Pure Power  
EVs: 248 HP / 252 Atk / 8 Spe  
Adamant Nature  
- Water Shuriken  
- Beat Up  
- Pursuit  
- Spore  

Mega Terrabbit (Audino-Mega) @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Parting Shot  
- Aromatherapy  
- Defog  
- Recover  

Destiny (Lucario-Mega) @ Flame Plate  
Ability: Wonder Guard  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Flash Cannon  
- Taunt  
- Judgment  
- Shell Smash  

Terror (Giratina) @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Destiny Bond  
- Encore  
- Toxic  
- Roost