Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 116 Atk / 80 Def / 60 Spe  
Adamant Nature  
- Precipice Blades  
- Stone Edge  
- Heat Crash  
- Swords Dance  

Zygarde @ Heracronite  
Ability: Aura Break  
EVs: 252 Atk / 204 SpD / 52 Spe  
Adamant Nature  
- Substitute  
- Scale Shot  
- Thousand Arrows  
- Pain Split  

Regieleki @ Altarianite  
Ability: Transistor  
EVs: 252 Atk / 100 Def / 48 SpA / 108 Spe  
Naughty Nature  
- Volt Switch  
- Extreme Speed  
- Rapid Spin  
- Explosion  

Heatran @ Ampharosite  
Ability: Flash Fire  
EVs: 248 HP / 252 Def / 8 SpA  
Bold Nature  
IVs: 0 Atk  
- Magma Storm  
- Toxic  
- Stealth Rock  
- Earth Power  

Milotic @ Sablenite  
Ability: Competitive  
EVs: 248 HP / 180 Def / 80 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Scald  
- Recover  
- Haze  

Mew @ Manectite  
Ability: Synchronize  
EVs: 252 HP / 80 Def / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Future Sight  
- Ice Beam  
- Volt Switch  
- Roost