Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Moonblast  
- Diamond Storm  
- Protect  
- Earth Power  

Dragonite @ Lum Berry  
Ability: Multiscale  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Extreme Speed  
- Dragon Dance  
- Roost  

Magnezone @ Electrium Z  
Ability: Magnet Pull  
EVs: 132 Def / 252 SpA / 124 Spe  
Modest Nature  
IVs: 0 Atk  
- Thunderbolt  
- Flash Cannon  
- Hidden Power [Fire]  
- Substitute  

Jirachi @ Leftovers  
Ability: Serene Grace  
EVs: 248 HP / 172 SpD / 88 Spe  
Careful Nature  
- Iron Head  
- Wish  
- Protect  
- Stealth Rock  

Gliscor @ Toxic Orb  
Ability: Poison Heal  
EVs: 244 HP / 52 Def / 76 SpD / 136 Spe  
Jolly Nature  
- Earthquake  
- Knock Off  
- Defog  
- Roost  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 96 Def / 160 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Toxic Spikes  
- Haze  
- Recover