Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 176 HP / 80 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk / 30 Def  
- Shadow Ball  
- Sludge Bomb  
- Hidden Power [Ice]  
- Protect  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 248 HP / 16 Atk / 116 Def / 128 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Gyro Ball  
- Power Whip  
- Leech Seed  
- Protect  

Landorus-Therian @ Rocky Helmet  
Ability: Intimidate  
EVs: 252 HP / 36 Atk / 52 Def / 168 Spe  
Jolly Nature  
- Earthquake  
- Stone Edge  
- U-turn  
- Stealth Rock  

Thundurus (M) @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 96 SpA / 136 SpD / 28 Spe  
Modest Nature  
- Thunderbolt  
- Superpower  
- Thunder Wave  
- Protect  

Volcanion @ Assault Vest  
Ability: Water Absorb  
EVs: 252 HP / 192 SpD / 64 Spe  
Calm Nature  
IVs: 0 Atk  
- Heat Wave  
- Steam Eruption  
- Sludge Bomb  
- Earth Power  

Porygon2 @ Eviolite  
Ability: Download  
EVs: 252 HP / 136 SpA / 120 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Trick Room  
- Recover  
- Ice Beam  
- Thunderbolt