Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 156 SpD / 100 Spe  
Timid Nature  
- Toxic  
- Dragon Tail  
- Recover  
- Mystical Fire  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 248 HP / 240 Def / 20 Spe  
Impish Nature  
- Sunsteel Strike  
- Moonlight  
- Earthquake  
- Stealth Rock  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 72 HP / 244 SpD / 192 Spe  
Jolly Nature  
- Defog  
- Knock Off  
- Sucker Punch  
- Roost  

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

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
- Coil  
- Toxic  
- Thousand Arrows  
- Rest  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Transform