Groudon @ Red Orb  
Ability: Drought  
EVs: 248 HP / 32 Def / 216 SpD / 12 Spe  
Careful Nature  
- Precipice Blades  
- Lava Plume  
- Dragon Tail  
- Stealth Rock  

Greninja @ Focus Sash  
Ability: Protean  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Icy Wind  
- Taunt  
- Toxic Spikes  
- Spikes  

Volbeat (M) @ Salac Berry  
Ability: Prankster  
EVs: 248 HP / 176 Def / 84 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Encore  
- Tail Glow  
- Substitute  
- Baton Pass  

Rayquaza @ Life Orb  
Ability: Air Lock  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
IVs: 29 HP  
- Dragon Ascent  
- Draco Meteor  
- Surf  
- Extreme Speed  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 36 Def / 248 SpA / 224 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Sleep Talk  
- Geomancy  

Arceus (Arceus-Ghost) @ Spooky Plate  
Ability: Multitype  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Focus Blast  
- Calm Mind  
- Substitute