Anti Psychic/Ground/A bit of Steel Poison Mono

Venusaur @ Venusaurite
Ability: Chlorophyll
EVs: 252 HP / 240 Def / 16 Spe
Bold Nature
- Giga Drain
- Hidden Power Fire
- Leech Seed
- Synthesis

Toxicroak @ Life Orb
Ability: Dry Skin
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Sucker Punch
- Ice Punch
- Drain Punch
- Swords Dance

Gengar @ Choice Scarf
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Shadow Ball
- Focus Blast
- Dazzling Gleam
- Destiny Bond

Scolipede @ Black Sludge
Ability: Speed Boost
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Protect
- Earthquake
- Aqua Tail
- Megahorn

Skuntank @ Black Sludge
Ability: Aftermath
EVs: 16 HP / 228 Atk / 252 SpD / 12 Spe
Adamant Nature
- Defog
- Sucker Punch
- Toxic
- Taunt

Drapion @ Black Sludge
Ability: Battle Armor
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Knock Off
- Aqua Tail
- Fire Fang
- Swords Dance