Poison types are weak against Ground and Psychic types.
Fighting types are weak against psychic and flying types.
Poison-Type moves are only strong against Grass-Types. Poison-Type Pokémon are strong against Grass-Types, Bug-Types, Fighting-Types, and other Poison-Types.
ground type Pokemon are super effective against poison type Pokemon.
Poison-types and steel-types
Poison moves don't work very well on Rock, Ground, or Ghost Pokemon, and they don't work at all against Steel types... so if you get some of those type Pokemon to fight for you, you should have a good chance of winning. Try using a Pokemon with the move Earthquake, if you have it. Poison is strong against Grass types and Fairy types, so try not to use those types in the battle if you can help it.
Fighting types are weak against psychic and flying types.
Poison-Type moves are only strong against Grass-Types. Poison-Type Pokémon are strong against Grass-Types, Bug-Types, Fighting-Types, and other Poison-Types.
ground type Pokemon are super effective against poison type Pokemon.
Psychic types are super effective against Poison types.
No Just to the following types: Gound Fighting and Fire and is immune to Poison Psychic is strong against the following types: Just Fighting and Poison And it will not affect Dark types at all
Poison-types and steel-types
The three main Pokemon types that hold an advantage against psychic type Pokemon, are bug, ghost, and dark types. Ghost and Dark type Pokemon are usuallypreferredby trainers, usually due to their accuracy, and high critical moves, such as Night Slash. Odd enough, Dark type Pokemon are weak against bug types, while Ghosts are weak against Ghost and Dark types.
Poison moves don't work very well on Rock, Ground, or Ghost Pokemon, and they don't work at all against Steel types... so if you get some of those type Pokemon to fight for you, you should have a good chance of winning. Try using a Pokemon with the move Earthquake, if you have it. Poison is strong against Grass types and Fairy types, so try not to use those types in the battle if you can help it.
Psychic is strong against Poison and Fighting, weak against Psychic and Steel, and has no effect on Dark. Bug, Dark, and Ghost are strong against Psychic. Psychic and Fighting are weak against it. There are no types that have zero effect on it.
Poison is strong against Grass. It's weak against Poison, Ground, Rock, and Ghost. It can't affect Steel. Ground and Psychic are strong against Poison. Grass, Fighting, Poison, and Bug are weak against Poison.
The pokemon that are strong against psychic are bug, dark, and ghost.
Fighting types are strong against normal types.