Tapu Koko @ Lucarionite  
Ability: Electric Surge  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nature's Madness  
- Volt Switch  
- Toxic  
- Dazzling Gleam  

Magearna @ Pinsirite  
Ability: Soul-Heart  
Happiness: 0  
EVs: 100 HP / 252 Atk / 156 Spe  
Adamant Nature  
- Shift Gear  
- Pain Split  
- Frustration  
- Heal Bell  

Mew @ Manectite  
Ability: Synchronize  
EVs: 252 HP / 212 Def / 44 Spe  
Bold Nature  
IVs: 0 Atk  
- Volt Switch  
- Ice Beam  
- Earth Power  
- Roost  

Groudon-Primal @ Red Orb  
Ability: Drought  
EVs: 252 HP / 16 Atk / 56 Def / 176 SpD / 8 Spe  
Sassy Nature  
- Lava Plume  
- Roar  
- Precipice Blades  
- Stone Edge  

Terrakion @ Diancite  
Ability: Justified  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Swords Dance  
- Close Combat  
- Stone Edge  
- Stealth Rock  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 252 HP / 16 Def / 168 SpD / 72 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Toxic  
- Defog  
- Recover