Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 184 Atk / 80 SpA / 244 Spe  
Hasty Nature  
IVs: 30 Def / 30 SpA / 30 Spe  
- Diamond Storm  
- Moonblast  
- Hidden Power [Fire]  
- Protect  

Bisharp @ Focus Sash  
Ability: Defiant  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Knock Off  
- Iron Head  
- Sucker Punch  
- Protect  

Thundurus (M) @ Sitrus Berry  
Ability: Prankster  
EVs: 252 HP / 44 Def / 116 SpD / 96 Spe  
Timid Nature  
- Thunderbolt  
- Superpower  
- Hidden Power [Ice]  
- Thunder Wave  

Volcanion @ Assault Vest  
Ability: Water Absorb  
EVs: 248 HP / 32 SpA / 208 SpD / 20 Spe  
Modest Nature  
IVs: 0 Atk  
- Steam Eruption  
- Heat Wave  
- Earth Power  
- Overheat  

Amoonguss @ Rocky Helmet  
Ability: Regenerator  
EVs: 240 HP / 176 Def / 92 SpD  
Relaxed Nature  
IVs: 0 Atk / 9 Spe  
- Spore  
- Rage Powder  
- Energy Ball  
- Protect  

Kyurem-Black @ Assault Vest  
Ability: Teravolt  
EVs: 56 HP / 108 Atk / 108 SpA / 236 Spe  
Naughty Nature  
- Ice Beam  
- Fusion Bolt  
- Icy Wind  
- Outrage