Regigigas @ Leftovers  
Ability: Slow Start  
EVs: 248 HP / 80 Def / 108 SpD / 72 Spe  
Careful Nature  
- Return  
- Knock Off  
- Thunder Wave / Toxic
- Substitute
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Optional Move(s): 
- Confuse Ray
- Drain Punch
- Earthquake
- Fire Punch
- Headbutt
- Power-Up Punch
- Psych Up
- Thunderbolt
Optional Item(s): 
- Assault Vest
- Normalium Z
Optional Ability:  
- N/A
Optional EV/IV(s): 
- 184 HP / 252 Atk / 72 Spe (Adamant)