4 -- Poison
Moves:
Poison-sting
Acid
Poison-powder
Toxic
Smog
Sludge
Poison-gas
Acid-armor
Sludge-bomb
Poison-fang
Poison-tail
Gastro-acid
Toxic-spikes
Poison-jab
Cross-poison
Gunk-shot
Venoshock
Sludge-wave
Coil
Acid-spray
Clear-smog
Belch
Venom-drench
Acid-downpour--physical
Acid-downpour--special
Baneful-bunker
Toxic-thread
Purify
Max-ooze
Shell-side-arm
Corrosive-gas
Dire-claw
Barb-barrage
Mortal-spin
Noxious-torque
Malignant-chain
Pokemon:
Bulbasaur
Ivysaur
Venusaur
Weedle
Kakuna
Beedrill
Ekans
Arbok
Nidoran-f
Nidorina
Nidoqueen
Nidoran-m
Nidorino
Nidoking
Zubat
Golbat
Oddish
Gloom
Vileplume
Venonat
Venomoth
Bellsprout
Weepinbell
Victreebel
Tentacool
Tentacruel
Grimer
Muk
Gastly
Haunter
Gengar
Koffing
Weezing
Spinarak
Ariados
Crobat
Qwilfish
Dustox
Roselia
Gulpin
Swalot
Seviper
Budew
Roserade
Stunky
Skuntank
Skorupi
Drapion
Croagunk
Toxicroak
Venipede
Whirlipede
Scolipede
Trubbish
Garbodor
Foongus
Amoonguss
Skrelp
Dragalge
Mareanie
Toxapex
Salandit
Salazzle
Nihilego
Poipole
Naganadel
Toxel
Toxtricity-amped
Eternatus
Sneasler
Overqwil
Shroodle
Grafaiai
Varoom
Revavroom
Glimmet
Glimmora
Clodsire
Iron-moth
Okidogi
Munkidori
Fezandipiti
Pecharunt
Venusaur-mega
Gengar-mega
Beedrill-mega
Grimer-alola
Muk-alola
Salazzle-totem
Slowbro-galar
Weezing-galar
Slowking-galar
Toxtricity-low-key
Eternatus-eternamax
Venusaur-gmax
Gengar-gmax
Garbodor-gmax
Toxtricity-amped-gmax
Toxtricity-low-key-gmax
Qwilfish-hisui
Sneasel-hisui
Wooper-paldea
Victreebel-mega
Scolipede-mega
Dragalge-mega