band (Seviper) @ Choice Band  
Ability: Shed Skin  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Sludge Bomb  
- Earthquake  
- Hidden Power [Ghost]  
- Double-Edge  

mixed (Seviper) @ Leftovers  
Ability: Shed Skin  
EVs: 4 HP / 252 Atk / 252 Spe  
Lonely Nature  
- Sludge Bomb  
- Earthquake  
- Flamethrower  
- Hidden Power [Grass] / [Water] / [Ice]

toxtaunt (Seviper) @ Leftovers  
Ability: Shed Skin  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Toxic  
- Sludge Bomb  
- Earthquake  
- Taunt  

endure salac (Seviper) @ Salac Berry  
Ability: Shed Skin  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Endure  
- Sludge Bomb  
- Earthquake  
- Hidden Power [Ghost]  

sub salac (Seviper) @ Salac Berry  
Ability: Shed Skin  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Substitute  
- Sludge Bomb  
- Earthquake  
- Toxic  

fully special (Seviper) @ Leftovers  
Ability: Shed Skin  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 2 Atk / 30 Def / 30 SpA  
- Flamethrower  
- Crunch  
- Giga Drain  
- Hidden Power [Water] / [Ice]