Eternatus  
Ability: Pressure  
EVs: 128 HP / 252 SpD / 128 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Mystical Fire  
- Toxic  
- Recover  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Stealth Rock  
- Sunsteel Strike  
- Toxic  
- Moonlight  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 16 HP / 240 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Toxic  
- Roost  
- Defog  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
- Spikes  
- Leech Seed  
- Curse  
- Knock Off  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 12 HP / 244 Atk / 252 Spe  
Jolly Nature  
- Coil  
- Scale Shot  
- Thousand Waves  
- Rest  

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