Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 208 HP / 4 Atk / 248 Def / 48 Spe  
Impish Nature  
- Thousand Waves  
- Scale Shot  
- Coil  
- Rest  

Blissey (F) @ Heavy-Duty Boots  
Ability: Natural Cure  
EVs: 168 HP / 140 Def / 200 SpD  
Calm Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Toxic  
- Confide  
- Stealth Rock  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 208 Def / 4 SpD / 44 Spe  
Bold Nature  
- Dragon Tail  
- Flamethrower  
- Toxic  
- Recover  

Lapras-Gmax @ Heavy-Duty Boots  
Ability: Water Absorb  
EVs: 188 HP / 184 Def / 136 SpD  
Bold Nature  
IVs: 0 Atk  
- Sheer Cold  
- Horn Drill  
- Rest  
- Freeze-Dry  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Knock Off  
- Morning Sun  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Behemoth Blade  
- Wild Charge  
- Close Combat  
- Assurance