Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 HP / 160 Def / 96 Spe  
Impish Nature  
IVs: 0 Atk  
- Foul Play  
- Toxic  
- Defog  
- Roost  

Blissey @ Utility Umbrella  
Ability: Healer  
EVs: 252 Def / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Ice Beam  
- Confide  
- Teleport  
- Soft-Boiled  

Corviknight @ Rocky Helmet  
Ability: Pressure  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
- Body Press  
- U-turn  
- Defog  
- Roost  

Dugtrio @ Choice Scarf  
Ability: Arena Trap  
EVs: 132 HP / 252 Atk / 124 Spe  
Adamant Nature  
- Earthquake  
- Stone Edge  
- Stealth Rock  
- Beat Up  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 252 Def / 168 SpA / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Thunder  
- Geomancy  
- Aromatherapy  

Ho-Oh @ Choice Band  
Ability: Regenerator  
EVs: 252 HP / 192 Atk / 52 SpD / 12 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Whirlwind  
- Earthquake