Special Tank (Octillery) @ Leftovers  
Ability: Sniper  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Surf  
- Ice Beam  
- Energy Ball  
- Thunder Wave / Substitute

Choice Specs (Octillery) @ Choice Specs  
Ability: Sniper  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Surf / Hydro Pump
- Ice Beam  
- Energy Ball  
- Fire Blast  

Choice Scarf (Octillery) @ Choice Scarf  
Ability: Sniper  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Water Spout  
- Ice Beam  
- Energy Ball  
- Surf  

Physical (Octillery) @ Leftovers / Life Orb
Ability: Suction Cups  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Waterfall  
- Seed Bomb  
- Gunk Shot  
- Substitute / Thunder Wave