Poison Sting is a move used by various Pokémon in the Pokémon series. It is a Poison-type attack that inflicts damage on the opponent while also having a chance to poison them. This move is often associated with Pokémon that have a venomous or toxic nature, such as Beedrill and Caterpie. When a Pokémon uses Poison Sting, it strikes the target with a sharp appendage or needle, delivering a dose of poison. The move is particularly effective against Grass and Fairy types, but it is less effective against Steel and Poison types. The chance of poisoning the target adds a strategic element to battles.