Blissey (F) @ Leftovers  
Ability: Natural Cure  
EVs: 232 HP / 252 Def / 4 SpA / 20 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Ice Beam  
- Counter  
- Rest  

Machamp @ Soft Sand  
Ability: Guts  
EVs: 204 Atk / 180 Def / 124 Spe  
Adamant Nature  
- Bulk Up  
- Cross Chop  
- Earthquake  
- Encore  

Gyarados @ Choice Band  
Ability: Intimidate  
EVs: 252 HP / 212 Atk / 24 SpA / 20 SpD  
Brave Nature  
- Hidden Power [Flying]  
- Earthquake  
- Thunderbolt  
- Flamethrower