Tyranitar @ Tyranitarite  
Ability: Sand Stream  
EVs: 136 HP / 124 Atk / 84 SpD / 164 Spe  
Adamant Nature  
- Rock Tomb  
- Taunt  
- Crunch  
- Fire Punch  

Serperior @ Grassium Z  
Ability: Contrary  
EVs: 248 HP / 4 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leech Seed  
- Substitute  
- Protect  
- Leaf Storm  

Donphan @ Groundium Z  
Ability: Sturdy  
EVs: 136 HP / 252 Atk / 120 Def  
Naughty Nature  
IVs: 0 SpD / 17 Spe  
- Ice Shard  
- Earthquake  
- Endeavor  
- Counter