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

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 248 HP / 248 Def / 12 Spe  
Impish Nature  
- Substitute  
- Coil  
- Thousand Arrows  
- Dragon Tail  

Magearna @ Blue Orb  
Ability: Soul-Heart  
EVs: 252 HP / 108 Def / 148 SpD  
Calm Nature  
IVs: 0 Atk  
- Volt Switch  
- Fleur Cannon  
- Heart Swap  
- Pain Split  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 88 Atk / 120 SpD / 48 Spe  
Adamant Nature  
- Stealth Rock  
- Swords Dance  
- Precipice Blades  
- Smack Down  

Shaymin-Sky @ Diancite  
Ability: Serene Grace  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Seed Flare  
- Air Slash  
- Earth Power  
- Healing Wish  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 144 Def / 112 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Judgment  
- Ice Beam  
- Defog