Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
- Light Screen  
- Reflect  
- Taunt  
- Spirit Break  

Rayquaza-Mega @ Life Orb  
Ability: Air Lock  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Dragon Ascent  
- Extreme Speed  
- Earthquake  

Arceus-Ghost @ Spooky Plate  
Ability: Multitype  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Shadow Force  
- Swords Dance  
- Extreme Speed  
- Stone Edge  

Kyogre @ Life Orb  
Ability: Drizzle  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Origin Pulse  
- Calm Mind  
- Ice Beam  
- Hidden Power [Ground]  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Hidden Power [Fire]  
- Thunder  
- Moonblast  

Araquanid @ Focus Sash  
Ability: Water Bubble  
EVs: 252 HP / 188 Atk / 68 Spe  
Adamant Nature  
- Liquidation  
- Toxic  
- Magic Coat  
- Sticky Web