Zekrom @ Draco Plate  
Ability: Galvanize  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Shell Smash  
- Judgment  
- Boomburst  
- Extreme Speed  

Groudon-Primal @ Choice Band  
Ability: Tinted Lens  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- V-create  
- Thousand Arrows  
- U-turn  
- Switcheroo  

Mewtwo-Mega-Y @ Choice Specs  
Ability: Psychic Surge  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Psycho Boost  
- Moongeist Beam  
- U-turn  
- Trick  

Gyarados-Mega @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Lonely Nature  
- U-turn  
- Knock Off  
- Spectral Thief  
- Core Enforcer  

Giratina @ Safety Goggles  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Core Enforcer  
- Shore Up  
- Topsy-Turvy  
- U-turn  

Arceus-Ghost @ Leftovers  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Parting Shot  
- Topsy-Turvy  
- Defog  
- Stealth Rock