Mewtwo-Mega-Y @ Life Orb  
Ability: Magic Guard  
Tera Type: Psychic  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Photon Geyser  
- Light of Ruin  
- Headlong Rush  
- Volt Tackle  

Mewtwo-Mega-X @ Life Orb  
Ability: Magic Guard  
Tera Type: Psychic  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- High Jump Kick  
- Chloroblast  
- Steel Beam  
- Light of Ruin  

Victini @ Heavy-Duty Boots  
Ability: Earth Eater  
Tera Type: Psychic  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Lava Plume  
- Spectral Thief  
- Heal Order  
- Teleport  

Arceus-Ground @ Covert Cloak  
Ability: Ice Scales  
Tera Type: Ground  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Thousand Waves  
- Spectral Thief  
- Volt Switch  
- Heal Order  

Zygarde-Complete @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Dragon  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Thousand Waves  
- Core Enforcer  
- Court Change  
- Heal Order  

Registeel @ Clear Amulet  
Ability: Prankster  
Tera Type: Steel  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Anchor Shot  
- Heal Order  
- Haze  
- Parting Shot