Bug team

Sweeper (Vivillon-Monsoon) @ Focus Sash
Ability: Compound Eyes
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Sleep Powder
- Dream Eater
- Quiver Dance
- Bug Buzz

Masquerain @ Focus Sash
Ability: Intimidate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Air Slash
- Bug Buzz
- Hydro Pump
- Quiver Dance

Butterfree @ Focus Sash
Ability: Compound Eyes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Quiver Dance
- Sleep Powder
- Dream Eater
- Bug Buzz

Forretress @ Leftovers
Ability: Sturdy
EVs: 252 HP / 4 Atk / 252 Def
Relaxed Nature
- Spikes
- Rapid Spin
- Stealth Rocks
- Flash Cannon

Venomoth @ Focus Sash
Ability: Tinted Lens
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Sleep Powder
- Psychic
- Bug Buzz
- Quiver Dance

Back-up Sweeper (Beedrill-Mega) @ Beedrillite
Ability: Adaptability
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Poison Jab
- X-Scissor
- U-turn
- Knock Off