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

Gliscor @ Toxic Orb  
Ability: Poison Heal  
EVs: 244 HP / 200 SpD / 64 Spe  
Jolly Nature  
- Earthquake  
- Facade  
- Roost  
- Swords Dance  

Kartana @ Grassium Z  
Ability: Beast Boost  
EVs: 128 HP / 128 Atk / 252 Spe  
Jolly Nature  
- Leaf Blade  
- Knock Off  
- Synthesis  
- Defog  

Toxapex @ Icium Z  
Ability: Regenerator  
EVs: 248 HP / 184 Def / 76 SpA  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Blizzard  
- Recover  
- Toxic  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 248 HP / 28 Def / 232 SpD  
Calm Nature  
IVs: 0 Atk / 6 Spe  
- Volt Switch  
- Flash Cannon  
- Pain Split  
- Heart Swap  

Tornadus-Therian (M) @ Rocky Helmet  
Ability: Regenerator  
EVs: 248 HP / 56 SpA / 204 Spe  
Timid Nature  
- Hurricane  
- Knock Off  
- Heat Wave  
- Taunt