Gengar-Mega @ Spooky Plate  
Ability: Adaptability  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Acid Spray  
- Judgment  
- Sludge Wave  
- Taunt  

Yveltal @ Safety Goggles  
Ability: Fur Coat  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Spectral Thief  
- Revelation Dance  
- Recover  
- Anchor Shot  

Mewtwo-Mega-X @ Choice Band  
Ability: Dazzling  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Photon Geyser  
- Close Combat  
- Ice Hammer  
- First Impression  

Registeel @ Safety Goggles  
Ability: Flash Fire  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Anchor Shot  
- Shore Up  
- Rapid Spin  
- Entrainment  

Audino-Mega @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Soft-Boiled  
- Will-O-Wisp  
- Spikes  
- Moonblast  

Giratina @ Griseous Orb  
Ability: Prankster  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Destiny Bond  
- Shore Up  
- Haze  
- Core Enforcer