Diancie @ Weakness Policy  
Ability: Clear Body  
EVs: 252 HP / 252 Atk / 4 SpA  
Sassy Nature  
IVs: 0 Spe  
- Diamond Storm  
- Moonblast  
- Trick Room  
- Protect  

Gastrodon-East @ Sitrus Berry  
Ability: Storm Drain  
EVs: 252 HP / 108 Def / 44 SpA / 104 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Surf  
- Ice Beam  
- Earth Power  
- Recover  

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 252 HP / 40 Def / 216 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Earth Power  
- Heat Wave  
- Substitute  
- Protect  

Clefable @ Leftovers  
Ability: Unaware  
EVs: 252 HP / 108 Def / 148 SpD  
Calm Nature  
IVs: 0 Atk  
- Aromatherapy  
- Soft-Boiled  
- Cosmic Power  
- Toxic  

Incineroar @ Sitrus Berry  
Ability: Intimidate  
EVs: 240 HP / 116 Def / 140 SpD  
Sassy Nature  
IVs: 0 Spe  
- Fake Out  
- Knock Off  
- Parting Shot  
- Flamethrower  

Cresselia (F) @ Mental Herb  
Ability: Levitate  
EVs: 252 HP / 160 Def / 96 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Calm Mind  
- Moonlight  
- Ice Beam  
- Trick Room