| Type | poison | 
| Category | Physical | 
| Power | 50 | 
| Accuracy | 100 | 
| PP | 25 | 
| Introduced | Generation 3 | 
Poison Tail deals damage and has a 10% chance of poisoning the target. It also has an increased critical hit ratio (1⁄8 instead of 1⁄24).
Poison or Steel type Pokémon, those with the ability Immunity or those behind a Substitute cannot be poisoned.
When a Pokémon is holding Poisonium Z and uses its Z-Power, Poison Tail turns into Acid Downpour and has base power 100.
| Ruby Sapphire Emerald | Has a high critical-hit ratio. May also poison. | 
| FireRed LeafGreen | An attack with a high critical-hit ratio. It may also poison the foe. | 
| Diamond Pearl Platinum HeartGold SoulSilver | An attack with a high critical-hit ratio. This tail attack may also poison the foe. | 
| Black White Black 2 White 2 | The user hits the target with its tail. It may also poison the target. Critical hits land more easily. | 
| X Y O.Ruby A.Sapphire | The user hits the target with its tail. This may also poison the target. Critical hits land more easily. | 
| Sun Moon Ultra Sun Ultra Moon | The user hits the target with its tail. This may also poison the target. Critical hits land more easily. | 
| Sword Shield B.Diamond S.Pearl | The user hits the target with its tail. This may also poison the target. Critical hits land more easily. | 
| English | Poison Tail | 
|---|---|
| Spanish | Cola Veneno | 
| Italian | Velenocoda | 
| Japanese | ポイズンテール (Poison Tail) | 
| German | Giftschweif | 
| French | Queue-Poison |