Rayquaza-Mega @ Choice Specs  
Ability: Primordial Sea  
Shiny: Yes  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Hurricane  
- Origin Pulse  
- Knock Off  
- Leech Seed  

Dialga @ Safety Goggles  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Core Enforcer  
- Heal Order  
- Flash Cannon  
- Stealth Rock  

Tapu Fini @ Leftovers  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
- Defog  
- Scald  
- U-turn  
- Shore Up  

Yveltal @ Safety Goggles  
Ability: Soundproof  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Spectral Thief  
- Roost  
- Knock Off  
- Spore  

Chansey @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Fake Out  
- Whirlwind  
- Final Gambit  
- Soft-Boiled  

Regigigas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Facade  
- Spore  
- Shift Gear  
- Knock Off