Eternatus @ Scope Lens  
Ability: Sniper  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Focus Energy  
- Draco Meteor  
- Overheat  
- Spikes  

Zamazenta @ Choice Band  
Ability: Tough Claws  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Close Combat  
- V-create  
- U-turn  
- Trick  

Ho-Oh @ Heavy-Duty Boots  
Ability: Adaptability  
- Shift Gear  
- V-create  
- Dragon Ascent  
- Strength Sap  

Magearna @ Heavy-Duty Boots  
Ability: Primordial Sea  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Spikes  
- Nuzzle  
- Volt Switch  
- Recover  

Reshiram @ Heavy-Duty Boots  
Ability: Adaptability  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Mild Nature  
- Quiver Dance  
- Clanging Scales  
- V-create  
- Spikes  

Xerneas @ Heavy-Duty Boots  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Parting Shot  
- Haze  
- Fleur Cannon  
- Milk Drink