Poison Mono

Venusaur @ Venusaurite
Ability: Chlorophyll
EVs: 248 HP / 96 Def / 144 SpD / 20 Spe
Bold Nature
- Giga Drain
- Sludge Bomb
- Synthesis
- Hidden Power [Fire]

Scolipede @ Life Orb
Ability: Speed Boost
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Megahorn
- Protect
- Earthquake
- Rock Slide

Salazzle @ Life Orb
Ability: Corrosion
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Fire Blast
- Sludge Bomb
- Hidden Power [Ice]
- Nasty Plot

Muk-Alola @ Assault Vest
Ability: Poison Touch
EVs: 248 HP / 100 Atk / 92 Def / 64 SpD / 4 Spe
Adamant Nature
- Shadow Sneak
- Knock Off
- Gunk Shot
- Pursuit

Nihilego @ Focus Sash
Ability: Beast Boost
EVs: 80 HP / 176 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Stealth Rock
- Toxic Spikes
- Sludge Bomb
- Power Gem

Toxapex @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 252 Def / 4 Spe
Bold Nature
- Scald
- Recover
- Haze
- Toxic