Reuniclus @ Life Orb  
Ability: Magic Guard  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Psychic  
- Shadow Ball  
- Focus Blast  
- Trick Room  

Camerupt-Mega @ Cameruptite  
Ability: Sheer Force  
EVs: 248 HP / 252 SpA / 8 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Eruption  
- Flamethrower  
- Earth Power  
- Hidden Power [Ice]  

Magearna @ Electrium Z  
Ability: Soul-Heart  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Ice Beam  
- Thunderbolt  
- Flash Cannon  
- Trick Room  

Cresselia @ Mental Herb  
Ability: Levitate  
EVs: 252 HP / 252 Def / 4 SpA  
Relaxed Nature  
IVs: 0 Atk  
- Ice Beam  
- Trick Room  
- Lunar Dance  
- Moonlight  

Jirachi @ Mental Herb  
Ability: Serene Grace  
EVs: 252 HP / 4 SpD / 252 Spe  
Jolly Nature  
- Iron Head  
- Stealth Rock  
- Healing Wish  
- Trick Room  

Crawdaunt @ Life Orb  
Ability: Adaptability  
EVs: 252 HP / 252 Atk / 4 SpD  
Brave Nature  
- Knock Off  
- Crabhammer  
- Aqua Jet  
- Swords Dance