Mewtwo-Mega-X @ Choice Band  
Ability: Adaptability  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- Photon Geyser  
- Close Combat  
- U-turn  
- Knock Off  

Mewtwo-Mega-Y @ Life Orb  
Ability: Contrary  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Psycho Boost  
- Ice Beam  
- Fleur Cannon  
- V-create  

Aegislash @ Safety Goggles  
Ability: Prankster  
Level: 99  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Haze  
- U-turn  
- Spore  
- Roost  

Rayquaza-Mega @ Leftovers  
Ability: Triage  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Oblivion Wing  
- Tail Glow  
- Core Enforcer  

Shedinja @ Lum Berry  
Ability: Sturdy  
EVs: 252 Atk / 252 Def / 252 SpD  
Brave Nature  
IVs: 0 Spe  
- Haze  
- Endeavor  
- U-turn  
- Shadow Sneak  

Kyogre-Primal @ Toxic Orb  
Ability: Poison Heal  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Defog  
- Revelation Dance  
- U-turn  
- Moongeist Beam