Diancie @ Focus Sash  
Ability: Clear Body  
EVs: 252 HP / 4 Def / 252 SpD  
Rash Nature  
IVs: 0 Spe  
- Trick Room  
- Stealth Rock  
- Moonblast  
- Explosion  

Araquanid-Totem @ Choice Specs  
Ability: Water Bubble  
EVs: 248 HP / 8 Def / 252 SpD  
Rash Nature  
IVs: 0 Atk / 0 Spe  
- Surf  
- Ice Beam  
- Signal Beam  
- Giga Drain  

Alakazam @ Focus Sash  
Ability: Magic Guard  
EVs: 252 HP / 252 SpA / 4 Spe  
Relaxed Nature  
IVs: 0 Atk / 0 Def  
- Psychic  
- Calm Mind  
- Trick Room  
- Focus Blast  

Stakataka @ Rockium Z  
Ability: Beast Boost  
EVs: 252 HP / 248 Def  
Lonely Nature  
IVs: 0 Spe  
- Trick Room  
- Gyro Ball  
- Stone Edge  
- Superpower  

Regice @ Choice Specs  
Ability: Clear Body  
EVs: 252 HP / 4 Def / 252 SpD  
Rash Nature  
IVs: 0 Atk / 0 Spe  
- Thunderbolt  
- Ice Beam  
- Focus Blast  
- Blizzard  

Beedrill-Mega @ Beedrillite  
Ability: Adaptability  
EVs: 252 HP / 252 Atk  
Relaxed Nature  
IVs: 0 Def  
- U-turn  
- Poison Jab  
- Drill Run  
- Swords Dance