Diancie @ Weakness Policy  
Ability: Clear Body  
EVs: 252 HP / 252 Atk / 4 Def  
Brave Nature  
- Diamond Storm  
- Spirit Break  
- Trick Room  
- Protect  

Type: Null @ Eviolite  
Ability: Battle Armor  
EVs: 252 HP / 180 Def / 76 SpD  
Impish Nature  
- Fake Out  
- Transform  
- Super Fang  
- Whirlwind  

Necrozma @ Sitrus Berry  
Ability: Prism Armor  
EVs: 252 HP / 248 SpA / 8 SpD  
Quiet Nature  
IVs: 0 Atk  
- Expanding Force  
- Earth Power  
- Trick Room  
- Protect  

Indeedee-F (F) @ Eject Button  
Ability: Psychic Surge  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Expanding Force  
- Follow Me  
- Helping Hand  
- Protect  

Volcanion @ Shuca Berry  
Ability: Water Absorb  
EVs: 252 HP / 248 SpA / 8 SpD  
Modest Nature  
IVs: 0 Atk  
- Heat Wave  
- Steam Eruption  
- Earth Power  
- Protect  

Escavalier @ Sitrus Berry  
Ability: Overcoat  
EVs: 248 HP / 252 Atk / 8 Def  
Adamant Nature  
- Sunsteel Strike  
- U-turn  
- Close Combat  
- Protect