Ho-Oh @ Choice Band  
Ability: Regenerator  
EVs: 248 HP / 208 Atk / 52 SpD  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Earthquake  
- Defog  

Yveltal @ Black Glasses  
Ability: Dark Aura  
EVs: 248 HP / 72 Def / 188 SpD  
Careful Nature  
- Knock Off  
- Sucker Punch  
- Roost  
- Snarl  

Xatu @ Rocky Helmet  
Ability: Magic Bounce  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Roost  
- Toxic  
- Teleport  
- Night Shade  

Skarmory @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 252 Def / 4 Spe  
Bold Nature  
IVs: 0 Atk  
- Toxic  
- Spikes  
- Whirlwind  
- Roost  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
EVs: 4 HP / 252 Def / 252 SpD  
Bold Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Confide  
- Heal Bell  
- Seismic Toss  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 252 Def / 4 Spe  
Impish Nature  
- Rest  
- Earthquake  
- Stealth Rock  
- Toxic