Gothitelle @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 HP / 252 Def / 4 Spe  
Bold Nature  
- Trick  
- Cosmic Power  
- Stored Power  
- Rest  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Coil  
- Thousand Waves  
- Rest  
- Scale Shot  

Yveltal @ Choice Band  
Ability: Dark Aura  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- U-turn  
- Knock Off  
- Dual Wingbeat  
- Sucker Punch  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Morning Sun  
- Earthquake  
- Thunder Wave  

Blissey (F) @ Heavy-Duty Boots  
Ability: Natural Cure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Teleport  
- Toxic  
- Soft-Boiled  
- Shadow Ball  

Toxapex @ Rocky Helmet  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Recover  
- Haze  
- Toxic Spikes