Mono-Poison team

Lust (Nidoqueen) @ Assault Vest
Ability: Poison Point
EVs: 128 HP / 252 Atk / 128 Def
Adamant Nature
- Brick Break
- Crunch
- Poison Jab
- Earthquake

Disease (Weezing) (F) @ Leftovers
Ability: Levitate
EVs: 252 HP / 4 Def / 252 SpA
Modest Nature
IVs: 0 Atk
- Sludge Bomb
- Pain Split
- Flamethrower
- Shadow Ball

Hatred (Victreebel) (F) @ Liechi Berry
Ability: Gluttony
EVs: 60 HP / 192 Atk / 60 SpD / 196 Spe
Jolly Nature
- Poison Jab
- Leaf Blade
- Substitute
- Toxic

Strength (Drapion) (F) @ Razor Claw
Ability: Sniper
EVs: 132 HP / 252 Atk / 76 Def / 48 Spe
Adamant Nature
- Earthquake
- Night Slash
- Cross Poison
- Agility

Disguise (Dragalge) (F) @ Salac Berry
Ability: Adaptability
EVs: 192 HP / 60 Def / 252 SpA / 4 SpD
Modest Nature
IVs: 0 Atk
- Dragon Pulse
- Sludge Bomb
- Toxic Spikes
- Thunderbolt

Thieving (Nihilego) @ Air Balloon
Ability: Beast Boost
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Power Gem
- Psyshock
- Sludge Bomb
- Thunder Wave