Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 252 HP / 28 Def / 52 SpD / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Sludge Bomb  
- Will-O-Wisp  
- Protect  

Conkeldurr @ Assault Vest  
Ability: Guts  
EVs: 248 HP / 16 Atk / 244 SpD  
Adamant Nature  
- Drain Punch  
- Mach Punch  
- Knock Off  
- Ice Punch  

Ferrothorn @ Shed Shell  
Ability: Iron Barbs  
EVs: 240 HP / 180 Atk / 88 Def  
Sassy Nature  
IVs: 0 Spe  
- Gyro Ball  
- Power Whip  
- Leech Seed  
- Protect  

Volcanion @ Assault Vest  
Ability: Water Absorb  
EVs: 252 HP / 184 SpD / 72 Spe  
Modest Nature  
IVs: 0 Atk / 30 SpA  
- Steam Eruption  
- Heat Wave  
- Earth Power  
- Hidden Power [Grass]  

Thundurus (M) @ Sitrus Berry  
Ability: Prankster  
EVs: 248 HP / 252 SpD / 8 Spe  
Timid Nature  
IVs: 0 Atk / 30 Def  
- Thunderbolt  
- Hidden Power [Ice]  
- Toxic  
- Thunder Wave  

Landorus-Therian (M) @ Choice Scarf  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Stone Edge  
- U-turn  
- Superpower