Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 100 Def / 156 SpD  
Careful Nature  
- Reflect  
- Light Screen  
- Taunt  
- Play Rough  

Groudon @ Life Orb  
Ability: Drought  
EVs: 112 HP / 244 Atk / 152 Spe  
Adamant Nature  
- Precipice Blades  
- Stone Edge  
- Swords Dance  
- Rock Polish  

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

Zekrom @ Life Orb  
Ability: Teravolt  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Dragon Dance  
- Dragon Claw  
- Bolt Strike  
- Weather Ball  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Hone Claws  
- Knock Off  
- Dual Wingbeat  
- Roost  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 44 HP / 84 Def / 252 SpA / 40 SpD / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Substitute  
- Thunder  
- Moonblast