Hippowdon @ Leftovers / Rocky Helmet  
Ability: Magic Bounce  
EVs: 248 HP / 200 Def / 60 SpD  
Impish Nature  
IVs: 25 Spe  
- Earthquake  
- Stealth Rock  
- Slack Off  
- Toxic / Whirlwind
Hippowdon @ Soft Sand  
Ability: Magic Bounce  
EVs: 248 HP / 200 Def / 60 SpD  
Impish Nature  
IVs: 25 Spe  
- Curse  
- Earthquake  
- Slack Off  
- Ice Fang

Hippowdon @ Rocky Helmet  
Ability: Dauntless Shield / Intimidate 
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Earthquake  
- Body Press / Toxic  
- Slack Off  
- Stealth Rock / Whirlwind