Zacian @ Fairy Memory  
Ability: Desolate Land  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Multi-Attack  
- V-create  
- Swords Dance  
- Strength Sap  

Arceus-Steel @ Iron Plate  
Ability: Flash Fire  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Tail Glow  
- Taunt  
- Strength Sap  

Mewtwo-Mega-X @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- Photon Geyser  
- Thunderous Kick  
- Glacial Lance  
- Will-O-Wisp  

Yveltal @ Heavy-Duty Boots  
Ability: Fur Coat  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Knock Off  
- Spectral Thief  
- Roost  
- Rapid Spin  

Zamazenta-Crowned @ Leftovers  
Ability: Ice Scales  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Low Kick  
- Spectral Thief  
- Slack Off  
- U-turn  

Palkia @ Lustrous Orb  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Fishious Rend  
- Core Enforcer  
- Roost  
- Spikes