Torterra @ Grassium Z  
Ability: Overgrow  
EVs: 180 HP / 252 Atk / 76 Spe  
Adamant Nature  
- Swords Dance  
- Wood Hammer  
- Earthquake  
- Synthesis  

Rotom @ Colbur Berry  
Ability: Levitate  
EVs: 252 HP / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hex  
- Will-O-Wisp  
- Thunderbolt  
- Volt Switch  

Whimsicott @ Choice Specs  
Ability: Prankster  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Energy Ball  
- Psychic  
- Switcheroo  

Diancie @ Shuca Berry  
Ability: Clear Body  
EVs: 248 HP / 252 Def / 8 SpA  
Relaxed Nature  
- Moonblast  
- Diamond Storm  
- Earth Power  
- Stealth Rock  

Passimian @ Choice Scarf  
Ability: Receiver  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Close Combat  
- U-turn  
- Knock Off  
- Earthquake  

Silvally-Steel @ Steel Memory  
Ability: RKS System  
EVs: 192 HP / 4 Atk / 252 SpD / 60 Spe  
Careful Nature  
- Multi-Attack  
- Flamethrower  
- Parting Shot  
- Defog