Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 252 HP / 152 SpD / 104 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Bomb  
- Disable  
- Will-O-Wisp  
- Protect  

Whimsicott @ Sitrus Berry  
Ability: Prankster  
Shiny: Yes  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
- Moonblast  
- Tailwind  
- Encore  
- Beat Up  

Volcanion @ Assault Vest  
Ability: Water Absorb  
EVs: 252 HP / 216 SpD / 40 Spe  
Modest Nature  
IVs: 0 Atk / 30 Def  
- Steam Eruption  
- Heat Wave  
- Hidden Power [Ice]  
- Earth Power  

Thundurus @ Assault Vest  
Ability: Defiant  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Wild Charge  
- Sky Drop  
- Superpower  
- Volt Switch  

Landorus-Therian (M) @ Assault Vest  
Ability: Intimidate  
EVs: 252 HP / 28 Atk / 200 SpD / 28 Spe  
Careful Nature  
- Earthquake  
- Stone Edge  
- U-turn  
- Superpower  

Terrakion @ Lum Berry  
Ability: Justified  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Rock Slide  
- Close Combat  
- Earthquake  
- Protect