Cresselia @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 4 SpA  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Psycho Shift  
- Protect  
- Trick Room  
- Ice Beam  

Gourgeist-Super @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Def / 4 SpD  
Sassy Nature  
IVs: 0 Atk  
- Ally Switch  
- Trick Room  
- Synthesis  
- Protect  

Stakataka @ Choice Band  
Ability: Steelworker  
EVs: 252 HP / 252 Atk / 4 SpD  
Brave Nature  
IVs: 0 Spe  
- Gyro Ball  
- Earthquake  
- Rock Blast  
- Sleep Talk  

Deoxys-Attack @ Focus Sash  
Ability: Psychic Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Psychic  
- Protect  
- Focus Blast  

Diancie @ Diancite  
Ability: Download  
EVs: 252 Atk / 4 SpA / 252 Spe  
Serious Nature  
- Trick Room  
- Moonblast  
- Diamond Storm  
- Protect  

Volcanion @ Choice Specs  
Ability: Adaptability  
EVs: 248 HP / 252 SpA / 8 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Steam Eruption  
- Fire Blast  
- Sludge Wave  
- Earth Power