Groudon @ Red Orb  
Ability: Electric Surge  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Volt Switch  
- V-create  
- Anchor Shot  
- Milk Drink  

Reshiram @ Draco Plate  
Ability: Turboblaze  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Lonely Nature  
- Stealth Rock  
- V-create  
- Judgment  
- Soft-Boiled  

Giratina @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Anchor Shot  
- Topsy-Turvy  
- Perish Song  
- Shore Up  

Cresselia @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- U-turn  
- Scald  
- Core Enforcer  
- Spectral Thief  

Yveltal @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Revelation Dance  
- Haze  
- Rapid Spin  
- Heal Order  

Audino-Mega @ Rocky Helmet  
Ability: Soundproof  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Volt Switch  
- Knock Off  
- Defog  
- Slack Off