Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic  
- Toxic Spikes  
- Flamethrower  
- Recover  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 192 Def / 52 SpD / 16 Spe  
Impish Nature  
- Sacred Fire  
- Toxic  
- Whirlwind  
- Brave Bird  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
IVs: 29 Atk / 0 Spe  
- Transform  

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

Zygarde-Complete @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 252 Def / 4 Spe  
Impish Nature  
- Rest  
- Thousand Arrows  
- Coil  
- Dragon Tail  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 SpD / 4 Spe  
Careful Nature  
- Spikes  
- Leech Seed  
- Protect  
- Knock Off