Mesprit @ Colbur Berry  
Ability: Levitate  
EVs: 252 HP / 240 Def / 16 Spe  
Bold Nature  
- Stealth Rock  
- Psychic  
- U-turn  
- Healing Wish  

Abomasnow @ Choice Specs  
Ability: Snow Warning  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Giga Drain  
- Blizzard  
- Focus Blast  
- Energy Ball  

Sandslash-Alola @ Ghostium Z  
Ability: Slush Rush  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Icicle Crash  
- Shadow Claw  
- Earthquake  
- Swords Dance  

Golem @ Choice Band  
Ability: Sturdy  
EVs: 132 HP / 252 Atk / 124 Spe  
Adamant Nature  
- Stone Edge  
- Earthquake  
- Explosion  
- Sucker Punch  

Silvally-Water @ Water Memory  
Ability: RKS System  
EVs: 252 HP / 120 Def / 136 Spe  
Bold Nature  
IVs: 0 Atk  
- Defog  
- Surf  
- Flamethrower  
- Parting Shot  

Swanna @ Choice Scarf  
Ability: Hydration  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Hurricane  
- Brave Bird  
- Scald  
- Defog