Serperior @ Agony Boots  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Draco Meteor  
- Hidden Power [Fire]  
- Synthesis  

Serperior @ Leftovers  
Ability: Contrary  
EVs: 252 HP / 4 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Draco Meteor / Hidden Power [Fire]  
- Substitute  
- Leech Seed