Slowking @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 4 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Ice Beam  
- Future Sight  
- Slack Off  
- Teleport  

Buzzwole @ Choice Band  
Ability: Beast Boost  
EVs: 144 HP / 252 Atk / 112 Spe  
Adamant Nature  
- Close Combat  
- Ice Punch  
- Darkest Lariat  
- Roost  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 44 Def / 212 SpD  
Impish Nature  
- Bullet Seed / Knock Off  
- Leech Seed  
- Spikes  
- Curse / Bullet Seed / Bulldoze  

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

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 252 HP / 164 SpD / 92 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Toxic  
- Recover  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 200 HP / 188 SpD / 120 Spe  
Careful Nature  
- Iron Head  
- Thunder Wave  
- Morning Sun  
- Stealth Rock