Groudon @ Lum Berry  
Ability: Drought  
EVs: 252 HP / 148 Atk / 100 SpD / 8 Spe  
Adamant Nature  
- Swords Dance  
- Precipice Blades  
- Stone Edge  
- Heat Crash  

Heatran @ Ampharosite  
Ability: Flash Fire  
EVs: 252 HP / 32 Def / 224 SpD  
Calm Nature  
IVs: 0 Atk  
- Magma Storm  
- Earth Power  
- Stealth Rock  
- Taunt  

Solgaleo @ Metagrossite  
Ability: Full Metal Body  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Flare Blitz  
- Psychic Fangs  
- Morning Sun  

Milotic @ Sablenite  
Ability: Marvel Scale  
EVs: 252 HP / 200 Def / 56 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Scald  
- Haze  
- Recover  

Mew @ Manectite  
Ability: Synchronize  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Earth Power  
- Ice Beam  
- Volt Switch  
- Roost  

Regieleki @ Altarianite  
Ability: Transistor  
EVs: 252 Atk / 100 SpA / 156 Spe  
Naughty Nature  
- Extreme Speed  
- Rapid Spin  
- Volt Switch  
- Explosion