Zygarde-Complete @ Life Orb  
Ability: Power Construct  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Core Enforcer  
- Earth Power  
- Sludge Wave  
- Hidden Power [Fire]  

Natu @ Focus Sash  
Ability: Magic Bounce  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Trick Room  
- U-turn  
- Thief  
- Reflect  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 252 HP / 252 Atk / 4 SpA  
Brave Nature  
IVs: 0 Spe  
- Trick Room  
- Photon Geyser  
- Sunsteel Strike  
- Earthquake  

Diancie @ Normal Gem  
Ability: Clear Body  
EVs: 252 HP / 252 Atk / 4 Def  
Brave Nature  
- Trick Room  
- Stealth Rock  
- Explosion  
- Toxic  

Volcanion @ Grassium Z  
Ability: Water Absorb  
EVs: 248 HP / 252 SpA / 8 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Steam Eruption  
- Earth Power  
- Fire Blast  
- Solar Beam  

Arceus @ Silk Scarf  
Ability: Multitype  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Swords Dance  
- Extreme Speed  
- Earthquake  
- Shadow Claw