Ferrothorn @ Eject Button  
Ability: Iron Barbs  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Leech Seed  
- Spikes  
- Explosion  
- Gyro Ball  

Slaking @ Choice Scarf  
Ability: Truant  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Sucker Punch  
- Ice Punch  
- Earthquake  
- Giga Impact  

Gastrodon @ Groundium Z  
Ability: Storm Drain  
EVs: 180 HP / 112 SpA / 176 SpD / 40 Spe  
Modest Nature  
IVs: 0 Atk  
- Earth Power  
- Ice Beam  
- Recover  
- Scald  

Landorus-Therian @ Rocky Helmet  
Ability: Intimidate  
EVs: 28 HP / 32 Atk / 192 Def / 4 SpD / 252 Spe  
Adamant Nature  
- Stealth Rock  
- Hidden Power [Ice]  
- Earthquake  
- U-turn  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Hidden Power [Fire]  
- Diamond Storm  
- Moonblast  
- Protect  

Muk-Alola @ Assault Vest  
Ability: Poison Touch  
EVs: 4 HP / 252 Atk / 252 SpD  
Adamant Nature  
- Flamethrower  
- Focus Punch  
- Knock Off  
- Gunk Shot