Regieleki @ Lum Berry  
Ability: Neutralizing Gas  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Lovely Kiss  
- Stealth Rock  
- Bolt Beak  
- Fissure  

Eternatus-Eternamax @ Safety Goggles  
Ability: Neutralizing Gas  
EVs: 252 HP / 252 Atk / 252 Def / 240 SpD / 252 Spe  
Careful Nature  
- Knock Off  
- Guillotine  
- Whirlwind  
- Wish  

Eternatus-Eternamax @ Black Sludge  
Ability: Neutralizing Gas  
EVs: 252 HP / 240 Def / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Taunt  
- Substitute  
- Night Shade  
- Fissure  

Yveltal @ Safety Goggles  
Ability: Magic Bounce  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Knock Off  
- Guillotine  
- Slack Off  
- Whirlwind  

Giratina @ Safety Goggles  
Ability: Neutralizing Gas  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Spectral Thief  
- Horn Drill  
- Roost  
- Curse  

Eiscue @ Heavy-Duty Boots  
Ability: Ice Face  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- Hail  
- Sheer Cold  
- Rapid Spin  
- Soft-Boiled