Special Attacker (Octillery) @ Leftovers / Life Orb
Ability: Sniper  
EVs: 252 HP / 252 SpA / 4 SpD OR 252 SpA / 4 SpD / 252 Spe
Modest / Timid Nature  
IVs: 0 Atk  
- Surf / Hydro Pump
- Energy Ball
- Fire Blast / Flamethrower
- Thunder Wave / Substitute / Toxic

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

Choice Scarf (Octillery) @ Choice Scarf  
Ability: Sniper  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Water Spout  
- Surf / Hydro Pump
- Fire Blast / Flamethrower
- Energy Ball

Physical Attacker (Octillery) @ Leftovers / Life Orb
Ability: Sniper
EVs: 252 HP / 252 Atk / 4 SpD OR 252 Atk / 4 SpD / 252 Spe
Adamant / Jolly Nature  
- Waterfall  
- Seed Bomb  
- Gunk Shot  
- Substitute / Thunder Wave / Toxic / Protect