Seaking @ Icium Z
Ability: Lightning Rod  
EVs: 184 HP / 252 Atk / 72 Spe  
Adamant Nature  
- Waterfall
- Drill Run / Megahorn
- Knock Off  
- Haze

Seaking @ Leftovers  
Ability: Lightning Rod  
EVs: 252 HP / 40 SpA / 144 SpD / 72 Spe  
Calm Nature  
- Scald  
- Toxic  
- Knock Off  
- Protect
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Optional Move(s): 
- Blizzard
- Facade
- Megahorn
- Rest
- Sleep Talk
- Waterfall
Optional Item(s): 
- Assault Vest
- Chesto Berry
Optional Ability: 
- N/A
Optional EV/IV(s): 
- 152 HP / 164 Atk / 192 Spe (Jolly)