Steelix-Mega @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Recover  
- Haze  
- Thousand Waves  
- Destiny Bond  

Chansey @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Soft-Boiled  
- Spectral Thief  
- Baton Pass  
- Spikes  

Audino-Mega @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Defog  
- Stealth Rock  
- Shore Up  
- U-turn  

Gyarados-Mega @ Fairy Memory  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Sunsteel Strike  
- Power Trip  
- Multi-Attack  

Mewtwo-Mega-X @ Choice Band  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
IVs: 0 SpA  
- Light That Burns the Sky  
- Photon Geyser  
- Sunsteel Strike  
- Shadow Sneak  

Gengar-Mega @ Focus Sash  
Ability: Magic Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Ice Beam  
- Shell Smash  
- Moongeist Beam  
- Secret Sword