Zygarde @ Life Orb  
Ability: Power Construct  
EVs: 24 HP / 252 Atk / 232 Spe  
Adamant Nature  
- Dragon Dance  
- Thousand Arrows  
- Outrage  
- Stone Edge  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 72 HP / 252 SpD / 184 Spe  
Jolly Nature  
- Foul Play  
- U-turn  
- Roost  
- Defog  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 224 Def / 32 Spe  
Impish Nature  
- Sunsteel Strike  
- Moonlight  
- Thunder Wave  
- Stealth Rock  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 108 Atk / 132 Def / 16 Spe  
Impish Nature  
- Swords Dance  
- Heat Crash  
- Stone Edge  
- Precipice Blades  

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

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 108 HP / 148 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Aromatherapy  
- Thunder  
- Defog