Reshiram @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Core Enforcer  
- Blue Flare  
- Spectral Thief  
- U-turn  

Ho-Oh @ Charcoal  
Ability: Desolate Land  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shift Gear  
- V-create  
- Glacial Lance  
- Synthesis  

Zamazenta-Crowned @ Mystic Water  
Ability: Primordial Sea  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Fishious Rend  
- U-turn  
- Swords Dance  
- Roost  

Barraskewda @ Choice Band  
Ability: Primordial Sea  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Fishious Rend  
- Flip Turn  
- Knock Off  
- Glacial Lance  

Zygarde-Complete @ Leftovers  
Ability: Soundproof  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Anchor Shot  
- Parting Shot  
- Defog  
- Shore Up  

Registeel @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Parting Shot  
- Glare  
- Milk Drink  
- Haze