Diancie-Mega @ Diancite  
Ability: Clear Body  
EVs: 192 HP / 124 SpA / 192 Spe  
Timid Nature  
- Rock Tomb  
- Moonblast  
- Diamond Storm  
- Magnet Rise  

Mawile-Mega @ Mawilite  
Ability: Intimidate  
EVs: 248 HP / 8 Atk / 248 SpD / 4 Spe  
Careful Nature  
- Sucker Punch  
- Play Rough  
- Swords Dance  
- Protect  

Charizard-Mega-Y @ Charizardite Y  
Ability: Drought  
EVs: 232 HP / 40 Atk / 64 SpD / 172 Spe  
Gentle Nature  
- Blast Burn  
- Solar Beam  
- Rock Tomb  
- Earthquake