Terrakion @ Rockium Z  
Ability: Justified  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Stone Edge  
- Close Combat  
- Earthquake  

Nidoqueen @ Life Orb  
Ability: Sheer Force  
EVs: 128 HP / 252 SpA / 128 Spe  
Modest Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Ice Beam  
- Sludge Wave  
- Earth Power  

Necrozma @ Wiki Berry  
Ability: Prism Armor  
EVs: 112 HP / 252 SpA / 144 Spe  
Modest Nature  
IVs: 0 Atk  
- Stealth Rock  
- Photon Geyser  
- Heat Wave  
- Signal Beam  

Klefki @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 96 Def / 152 SpD / 8 Spe  
Careful Nature  
- Spikes  
- Thunder Wave  
- Foul Play  
- Play Rough  

Hydreigon @ Choice Scarf  
Ability: Levitate  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Draco Meteor  
- Dark Pulse  
- U-turn  
- Fire Blast  

Blastoise-Mega @ Blastoisinite  
Ability: Mega Launcher  
EVs: 104 HP / 252 SpA / 152 Spe  
Modest Nature  
IVs: 0 Atk  
- Hydro Pump  
- Dark Pulse  
- Ice Beam  
- Rapid Spin