Wailord @ Leftovers  
Ability: Water Veil  
EVs: 4 HP / 252 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Surf  
- Ice Beam  
- Rest  
- Sleep Talk

Wailord @ Choice Scarf
Ability: Water Veil
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Water Spout / Hydro Pump
- Ice Beam
- Hidden Power Grass
- Self-Destruct
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Optional Move(s): 
Optional Item(s): 
- Choice Specs
Optional Ability:  
- N/A
Optional EV/IV(s): 
- 4 Def / 252 SpA / 252 Spe (Timid / Modest)