Volcarona @ Buginium Z  
Ability: Swarm  
EVs: 252 HP / 60 Def / 4 SpA / 4 SpD / 188 Spe  
Bold Nature  
IVs: 0 Atk  
- Bug Buzz  
- Heat Wave  
- Quiver Dance  
- Roost  

Tapu Fini @ Wiki Berry  
Ability: Misty Surge  
EVs: 252 HP / 32 Def / 160 SpA / 40 SpD / 24 Spe  
Bold Nature  
IVs: 0 Atk  
- Moonblast  
- Muddy Water  
- Calm Mind  
- Protect  

Diancie @ Weakness Policy  
Ability: Clear Body  
EVs: 252 HP / 116 Atk / 20 SpA / 120 SpD  
Sassy Nature  
- Diamond Storm  
- Moonblast  
- Trick Room  
- Protect  

Lurantis @ Assault Vest  
Ability: Contrary  
EVs: 252 HP / 188 Atk / 64 Def / 4 SpD  
Adamant Nature  
- Leaf Blade  
- Superpower  
- Leech Life  
- Knock Off  

Salamence-Mega @ Salamencite  
Ability: Aerilate  
EVs: 124 HP / 196 SpA / 188 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Hyper Voice  
- Protect  
- Fire Blast  

Celesteela @ Leftovers  
Ability: Beast Boost  
EVs: 252 HP / 12 Atk / 112 Def / 132 SpD  
Brave Nature  
- Heavy Slam  
- Flamethrower  
- Leech Seed  
- Wide Guard