Cresselia @ Lum Berry  
Ability: Levitate  
EVs: 252 HP / 156 Def / 44 SpA / 56 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Psyshock  
- Helping Hand  
- Trick Room  
- Moonlight  

Hariyama @ Assault Vest  
Ability: Thick Fat  
EVs: 252 Atk / 60 Def / 196 SpD  
Brave Nature  
IVs: 1 Spe  
- Fake Out  
- Close Combat  
- Knock Off  
- Feint  

Camerupt-Mega @ Cameruptite  
Ability: Solid Rock  
EVs: 240 HP / 104 Def / 164 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Heat Wave  
- Earth Power  
- Ancient Power  
- Protect  

Muk-Alola @ Wiki Berry  
Ability: Gluttony  
EVs: 232 HP / 212 Atk / 64 Def  
Brave Nature  
IVs: 0 Spe  
- Poison Jab  
- Knock Off  
- Curse  
- Protect  

Sylveon @ Choice Specs  
Ability: Pixilate  
EVs: 252 HP / 40 Def / 216 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Hyper Voice  
- Hyper Beam  
- Shadow Ball  
- Hidden Power [Fire]  

Gourgeist-Super @ Mental Herb  
Ability: Insomnia  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Seed Bomb  
- Will-O-Wisp  
- Trick Room  
- Leech Seed