Klefki @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 228 SpD / 28 Spe  
Careful Nature  
- Toxic  
- Play Rough  
- Spikes  
- Thief  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 244 HP / 252 Def / 12 Spe  
Impish Nature  
- Sunsteel Strike  
- Moonlight  
- Stone Edge  
- Dragon Dance  

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

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

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: 212 Def / 252 SpA / 44 Spe  
Modest Nature  
- Geomancy  
- Moonblast  
- Aromatherapy  
- Close Combat