Chansey @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Soft-Boiled  
- Defog  
- Anchor Shot  
- Whirlwind  

Ho-Oh @ Leftovers  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Spectral Thief  
- Anchor Shot  
- Entrainment  
- Shore Up  

Mewtwo-Mega-X @ Expert Belt  
Ability: Technician  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Frost Breath  
- Storm Throw  
- Spikes  
- Sunsteel Strike  

Yveltal @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Slack Off  
- Rapid Spin  
- Revelation Dance  
- Beak Blast  

Giratina @ Lagging Tail  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Haze  
- Destiny Bond  
- U-turn  
- Shore Up  

Registeel @ Leftovers  
Ability: Flash Fire  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Defog  
- Recover  
- Knock Off  
- U-turn