Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 76 Def / 184 SpD  
Careful Nature  
IVs: 30 Spe  
- Defog  
- Knock Off  
- U-turn  
- Roost  

Necrozma-Dusk-Mane @ Heavy-Duty Boots  
Ability: Prism Armor  
EVs: 252 HP / 224 Def / 32 Spe  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Thunder Wave  
- Morning Sun  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 248 SpD / 8 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Toxic  
- Recover