Butterfree @ Buginium Z  
Ability: Tinted Lens 
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Bug Buzz  
- Quiver Dance  
- Sleep Powder
- Substitute 

Butterfree @ Focus Sash
Ability: Compound Eyes  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Bug Buzz  
- Quiver Dance  
- Sleep Powder
- Giga Drain / Stun Spore
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Optional Move(s): 
- Air Slash
- Energy Ball
- Psychic
- Roost
Optional Item(s): 
- Leftovers
- Life Orb
Optional Ability: 
- N/A
Optional EV/IV(s): 
- N/A