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  
- Baton Pass  
- Psystrike  

Pheromosa @ Expert Belt  
Ability: Stakeout  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- U-turn  
- Close Combat  
- Sunsteel Strike  
- Draco Meteor  

aegisukc (Aegislash) @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Serious Nature  
IVs: 0 Spe  
- U-turn  
- Nature's Madness  
- Spectral Thief  
- Circle Throw  

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

Zygarde-Complete @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Haze  
- Shore Up  
- Core Enforcer  
- Glare  

Regigigas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Spore  
- Knock Off  
- Facade  
- Shift Gear