Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 248 HP / 8 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Substitute  
- Endeavor  
- Moonblast  

Heatmor @ Assault Vest  
Ability: White Smoke  
EVs: 136 HP / 252 Atk / 8 Def / 8 SpD / 104 Spe  
Adamant Nature  
- Fire Lash  
- Sucker Punch  
- Knock Off  
- Giga Drain  

Mamoswine @ Metronome  
Ability: Thick Fat  
EVs: 252 Atk / 252 Spe  
Adamant Nature  
- Earthquake  
- Ice Shard  
- Icicle Crash  
- Knock Off  

Omari P (Hoopa) @ Aguav Berry  
Ability: Magician  
EVs: 92 HP / 252 SpA / 164 Spe  
Modest Nature  
IVs: 0 Atk  
- Shadow Ball  
- Nasty Plot  
- Substitute  
- Focus Blast  

Kartana @ Grassium Z  
Ability: Beast Boost  
EVs: 56 HP / 196 Def / 4 SpD / 252 Spe  
Timid Nature  
IVs: 19 Atk  
- Leaf Blade  
- Sacred Sword  
- Defog  
- Swords Dance  

Toxapex @ Eject Button  
Ability: Regenerator  
EVs: 248 HP / 56 Def / 204 SpD  
Calm Nature  
IVs: 0 Atk  
- Scald  
- Toxic  
- Haze  
- Recover