Excadrill @ Chople Berry  
Ability: Sand Rush  
EVs: 4 HP / 156 Atk / 124 SpD / 224 Spe  
Adamant Nature  
- Earthquake  
- Iron Head  
- Swords Dance  
- Stealth Rock  

Tyranitar-Mega @ Tyranitarite  
Ability: Sand Stream  
EVs: 32 HP / 224 Atk / 252 Spe  
Jolly Nature  
- Stone Edge  
- Earthquake  
- Ice Punch  
- Dragon Dance  

Tapu Fini @ Tapunium Z  
Ability: Misty Surge  
EVs: 244 HP / 196 Def / 68 Spe  
Bold Nature  
IVs: 0 Atk  
- Moonblast  
- Taunt  
- Nature's Madness  
- Gravity  

Serperior (F) @ Custap Berry  
Ability: Contrary  
EVs: 208 HP / 48 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Taunt  
- Defog  
- Glare  

Latias (F) @ Choice Scarf  
Ability: Levitate  
EVs: 32 HP / 224 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Trick  
- Defog  
- Thunder Wave  

Volcarona @ Iapapa Berry  
Ability: Flame Body  
EVs: 56 HP / 200 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fire Blast  
- Giga Drain  
- Hidden Power [Ground]  
- Quiver Dance