Pheromosa @ Normalium Z  
Ability: Teravolt  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Belly Drum  
- Close Combat  
- Spectral Thief  
- Icicle Crash  

Mewtwo-Mega-Y @ Terrain Extender  
Ability: Psychic Surge  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psycho Boost  
- Baton Pass  
- Moongeist Beam  
- Psystrike  

Ferrothorn @ Eject Button  
Ability: Unaware  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Careful Nature  
- Anchor Shot  
- Entrainment  
- Shore Up  
- Leech Seed  

Groudon-Primal @ Choice Scarf  
Ability: Soundproof  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- V-create  
- Ice Hammer  
- Baton Pass  
- Trick  

Gyarados-Mega @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Haze  
- Glare  
- Destiny Bond  
- Knock Off  

Chansey @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Fake Out  
- Whirlwind  
- Final Gambit  
- Soft-Boiled