Tyranitar @ Choice Band  
Ability: Sand Stream  
EVs: 100 HP / 252 Atk / 156 Spe  
Adamant Nature  
- Stone Edge  
- Crunch  
- Superpower  
- Pursuit  

Excadrill @ Leftovers  
Ability: Sand Rush  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Earthquake  
- Iron Head  
- Rapid Spin  
- Rock Slide  

Serperior @ Chesto Berry  
Ability: Contrary  
EVs: 48 HP / 208 SpA / 252 Spe  
Timid Nature  
IVs: 1 Atk / 30 Def / 30 SpD / 30 Spe  
- Leaf Storm  
- Hidden Power [Rock]  
- Glare  
- Rest