Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 8 Def / 248 SpD  
Sassy Nature  
- Spikes  
- Leech Seed  
- Knock Off  
- Curse  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 96 HP / 228 SpD / 184 Spe  
Jolly Nature  
- Knock Off  
- Roost  
- Defog  
- Foul Play  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 108 HP / 192 Atk / 88 Def / 16 SpD / 104 Spe  
Impish Nature  
- Dragon Dance  
- Substitute  
- Glare  
- Thousand Arrows  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 20 Atk / 200 Def / 36 Spe  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Morning Sun  
- Thunder Wave  

Zacian @ Lum Berry  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Play Rough  
- Close Combat  
- Crunch  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Meteor Beam  
- Recover