Mew @ Blastoisinite  
Ability: Synchronize  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Aura Sphere  
- Dark Pulse  
- Power Gem  
- Nasty Plot  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 208 Def / 48 SpD  
Impish Nature  
- Brave Bird  
- Sacred Fire  
- Roost  
- Defog  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 44 HP / 68 Def / 252 SpA / 144 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Thunderbolt  
- Geomancy  
- Substitute  

Swampert @ Sablenite  
Ability: Damp  
EVs: 248 HP / 216 Def / 44 SpA  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Ice Beam  
- Yawn  
- Stealth Rock  

Spectrier @ Lucarionite  
Ability: Grim Neigh  
EVs: 32 Def / 224 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Dark Pulse  
- Nasty Plot  
- Taunt  

Entei @ Altarianite  
Ability: Inner Focus  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Extreme Speed  
- Sacred Fire  
- Stone Edge  
- Howl