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

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 204 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Whirlwind  
- Defog

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 236 HP / 228 SpD / 44 Spe  
Calm Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Flamethrower  
- Dynamax Cannon  
- Recover  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 4 Atk / 252 SpA / 252 Spe  
Mild Nature  
- Sucker Punch  
- Oblivion Wing  
- Dark Pulse  
- Heat Wave  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Haze  
- Rest  
- Thousand Arrows  
- Glare    

Calyrex-Shadow @ Choice Specs  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Trick  
- Aromatherapy