Zygarde @ Altarianite  
Ability: Aura Break  
EVs: 208 HP / 252 Atk / 48 Spe  
Adamant Nature  
- Dragon Dance  
- Extreme Speed  
- Thousand Arrows  
- Return  

Magearna @ Manectite  
Ability: Soul-Heart  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Hidden Power [Fire]  
- Fleur Cannon  
- Volt Switch  
- Pain Split  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
- Precipice Blades  
- Overheat  
- Toxic  
- Stealth Rock  

Toxapex @ Gyaradosite  
Ability: Regenerator  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
IVs: 0 Atk  
- Toxic  
- Toxic Spikes  
- Recover  
- Haze  

Slowbro @ Sablenite  
Ability: Oblivious  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Slack Off  
- Calm Mind  
- Ice Beam  

Noivern @ Salamencite  
Ability: Frisk  
EVs: 248 HP / 100 Def / 160 Spe  
Timid Nature  
IVs: 0 Atk  
- Boomburst  
- Taunt  
- Defog  
- Roost