Poison (type)

The Poison type is regarded as one of the weakest offensively. Prior to Pokémon X/Y it was super-effective only against Grass (many of which are dual Poison so neutralizes the effect). It now has an extra advantage against the new Fairy type. In the first generation it was also super-effective against Bug but this was changed. It fares a little better defensively but its best advantage is through status moves like Toxic.

71
Poison type Pokémon
16
Single type Pokémon
55
Dual type Pokémon
27
Poison-type moves

Attack pros & cons

Poison moves are super-effective against:

Grass Fairy

Poison moves are not very effective against:

Poison Ground Rock Ghost

Poison moves have no effect on:

Steel

Defense pros & cons

These types are not very effective against Poison Pokémon:

Grass Fighting Poison Bug Fairy

These types are super-effective against Poison Pokémon:

Ground Psychic

Dual-type attack pros & cons

This chart shows the strength of the Poison type against every type combination. The fraction of damage a Poison type move will deal is shown - ½ means 50% damage (not very effective), 2 means 200% (super-effective) and so on.

Nor Fir Wat Ele Gra Ice Fig Poi Gro Fly Psy Bug Roc Gho Dra Dar Ste Fai
Normal 2½½½½02
Fire 2½½½½02
Water 2½½½½02
Electric 2½½½½02
Grass 2222222222204
Ice 2½½½½02
Fighting 2½½½½02
Poison ½½½½½½¼½½½¼¼½½0
Ground ½½½½½½¼½½½¼¼½½0
Flying 2½½½½02
Psychic 2½½½½02
Bug 2½½½½02
Rock ½½½½½½¼¼½½½¼½½0
Ghost ½½½½½½¼¼½½½¼½½0
Dragon 2½½½½02
Dark 2½½½½02
Steel 00000000000000000
Fairy 2222422222220

Poison Pokémon stat averages

63.8
HP
Ranked #17
70.5
Attack
Ranked #17
64.6
Defense
Ranked #17
69.3
Sp. Attack
Ranked #13
69.1
Sp. Defense
Ranked #14
66.1
Speed
Ranked #10

Notable Poison-type trainers



Koga
Fuchsia City gym leader
Red/Blue/Yellow


Janine
Fuchsia City gym leader
Gold/Silver/Crystal


Koga
Elite Four
Gold/Silver/Crystal


Koga
Fuchsia City gym leader
FireRed/LeafGreen


Janine
Fuchsia City gym leader
HeartGold/SoulSilver


Koga
Elite Four
HeartGold/SoulSilver


Roxie
Virbank City gym leader
Black 2/White 2


Koga
Fuchsia City gym leader

Poison Pokémon

There are 71 Poison-type Pokémon.
See also:

Weedle
#013 / Bug · Poison
Kakuna
#014 / Bug · Poison
Gloom
#044 / Grass · Poison
Venonat
#048 / Bug · Poison
Muk
#089 / Poison
Ariados
#168 / Bug · Poison
Dustox
#269 / Bug · Poison
Budew
#406 / Grass · Poison
Stunky
#434 / Poison · Dark
Skorupi
#451 / Poison · Bug
Venusaur
Mega Venusaur
#003 / Grass · Poison
Gengar
Mega Gengar
#094 / Ghost · Poison
Beedrill
Mega Beedrill
#015 / Bug · Poison
Grimer
Alolan Grimer
#088 / Poison · Dark
Muk
Alolan Muk
#089 / Poison · Dark