Pheromosa @ Choice Band  
Ability: Illusion  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- U-turn  
- Close Combat  
- Switcheroo  
- V-create  

Mewtwo-Mega-Y @ Choice Specs  
Ability: Psychic Surge  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psycho Boost  
- Moongeist Beam  
- Magma Storm  
- Trick  

Mewtwo-Mega-Y @ Life Orb  
Ability: Sheer Force  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Bolt Strike  
- Moonblast  
- Psychic  
- Earth Power  

Kartana @ Eject Button  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Destiny Bond  
- Sunsteel Strike  
- Shell Smash  
- Stealth Rock  

Regigigas @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Taunt  
- Shell Smash  
- Power Trip  
- Sunsteel Strike  

Gyarados-Mega @ Safety Goggles  
Ability: Unaware  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Lovely Kiss  
- Heal Order  
- Circle Throw  
- U-turn