The Poison type has been criminally under-developed in the Pokemon games. It is super-effective only against Grass (many of which are dual Poison so neutralizes the effect). 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.
Poison moves are super-effective against:
Poison moves are not very effective against:
Poison moves have no effect on:
These types are not very effective against Poison pokemon:
These types are super-effective against Poison pokemon:
The chart below shows the strength of the Poison type against every type combination. The numbers in the squares show the fraction damage the move will do (i.e. ½ means 50% damage and not very effective, while 4 means 400% - super-effective).
For example, look where the Grass and Poison types intersect to see how good a Poison-type move would be against a pokemon like Venusaur. You will see that it is 100%.
| nor | fir | wat | ele | gra | ice | fig | poi | gro | fly | psy | bug | roc | gho | dra | dar | ste | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fire | |||||||||||||||||
| Water | |||||||||||||||||
| Electric | |||||||||||||||||
| Grass | 2 | 2 | 2 | 2 | |||||||||||||
| Ice | 2 | ||||||||||||||||
| Fighting | 2 | ||||||||||||||||
| Poison | ½ | ½ | ½ | ½ | ½ | ½ | |||||||||||
| Ground | ½ | ½ | ½ | ½ | ½ | ½ | ¼ | ||||||||||
| Flying | 2 | ½ | ½ | ||||||||||||||
| Psychic | 2 | ½ | ½ | ||||||||||||||
| Bug | 2 | ½ | ½ | ||||||||||||||
| Rock | ½ | ½ | ½ | ½ | ½ | ½ | ¼ | ¼ | ½ | ½ | ½ | ||||||
| Ghost | ½ | ½ | ½ | ½ | ½ | ½ | ¼ | ¼ | ½ | ½ | ½ | ¼ | |||||
| Dragon | 2 | ½ | ½ | ½ | ½ | ||||||||||||
| Dark | 2 | ½ | ½ | ½ | ½ | ||||||||||||
| Steel | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
There are 57 Poison-type pokemon.
See also: