Calyrex-Ice @ Choice Band  
Ability: As One (Glastrier)  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Glacial Lance  
- High Horsepower  
- Trick  
- Aromatherapy  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 200 HP / 8 Def / 48 SpD / 252 Spe  
Jolly Nature  
- Foul Play  
- Roost  
- U-turn  
- Defog  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 12 Atk / 224 Def / 20 Spe  
Adamant Nature  
- Stealth Rock  
- Precipice Blades  
- Swords Dance  
- Stone Edge  

Blissey (F) @ Utility Umbrella  
Ability: Natural Cure  
EVs: 4 HP / 252 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Thunder Wave  
- Soft-Boiled  
- Seismic Toss  
- Teleport  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 88 HP / 180 Def / 160 SpA / 80 Spe  
Bold Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Rest  
- Sleep Talk  

Marshadow @ Choice Band  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Poltergeist  
- Close Combat  
- Shadow Sneak  
- Spectral Thief