Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 16 HP / 224 Atk / 36 Def / 232 Spe  
Impish Nature  
- Thousand Arrows  
- Dragon Dance  
- Substitute  
- Dragon Tail  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 212 SpD / 44 Spe  
Calm Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Toxic Spikes  
- Recover  
- Flamethrower  

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

Calyrex-Shadow @ Life Orb  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Substitute  
- Nasty Plot  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 HP / 176 SpD / 80 Spe  
Careful Nature  
- Foul Play  
- Roost  
- Sucker Punch  
- Defog  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 116 HP / 140 Atk / 252 Spe  
Adamant Nature  
- Behemoth Blade  
- Wild Charge  
- Close Combat  
- Play Rough