Klefki @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Reflect  
- Light Screen  
- Thunder Wave  
- Spikes  

Groudon @ Life Orb  
Ability: Drought  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Precipice Blades  / Earthquake  
- Aerial Ace  
- Stone Edge  

Kyogre @ Choice Scarf  
Ability: Drizzle  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Water Spout  
- Origin Pulse  
- Thunder  
- Ice Beam  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Earthquake  
- Sunsteel Strike  
- Stone Edge  

Marshadow @ Focus Sash  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Spectral Thief  
- Shadow Sneak  
- Close Combat  
- Endeavor  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Oblivion Wing  
- Dark Pulse  
- Knock Off  
- Heat Wave