Naganadel @ Assault Vest  
Ability: Beast Boost  
EVs: 252 HP / 48 SpA / 208 Spe  
Modest Nature  
- Sludge Bomb  
- Draco Meteor  
- Flamethrower  
- U-turn  

Diancie @ Hard Stone  
Ability: Clear Body  
EVs: 252 HP / 148 Atk / 8 SpA / 100 SpD  
Sassy Nature  
IVs: 0 Spe  
- Trick Room  
- Diamond Storm  
- Moonblast  
- Protect  

Necrozma @ Groundium Z  
Ability: Prism Armor  
EVs: 252 HP / 100 Def / 152 SpA / 4 SpD  
Modest Nature  
- Trick Room  
- Earth Power  
- Photon Geyser  
- Stealth Rock  

Greninja (M) @ Choice Scarf  
Ability: Protean  
EVs: 176 Atk / 80 SpA / 252 Spe  
Hasty Nature  
- Gunk Shot  
- U-turn  
- Hydro Pump  
- Blizzard  

Abomasnow-Mega @ Abomasite  
Ability: Snow Warning  
EVs: 252 HP / 152 Def / 104 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Blizzard  
- Hidden Power [Fire]  
- Giga Drain  
- Protect  

Celesteela @ Leftovers  
Ability: Beast Boost  
EVs: 252 HP / 12 Atk / 44 Def / 200 SpD  
Sassy Nature  
- Heavy Slam  
- Leech Seed  
- Flamethrower  
- Wide Guard