Zacian @ Choice Band  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Play Rough  
- Close Combat  
- Wild Charge  
- Crunch  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 44 HP / 124 Def / 252 SpA / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Substitute  
- Thunder  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 16 Atk / 128 Def / 116 SpD  
Careful Nature  
IVs: 26 Spe  
- Knock Off  
- Roost  
- U-turn  
- Defog  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 244 HP / 252 Def / 12 Spe  
Impish Nature  
- Stealth Rock  
- Iron Head  
- Moonlight  
- Thunder Wave  

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

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 220 Def / 16 SpD / 20 Spe  
Impish Nature  
- Bulk Up  
- Rest  
- Precipice Blades  
- Toxic