| Type | grass |
| Category | Physical |
| Power | 75 |
| Accuracy | 100 |
| PP | 10 |
| Introduced | Generation 5 |
Horn Leech deals damage and the user will recover 50% of the HP drained.
If the user is holding a Big Root, the move instead recovers 65% of the damage dealt (30% more than normal). If used on a Pokémon with the ability Liquid Ooze, the user instead loses the HP it would have otherwise gained.
When a Pokémon is holding Grassium Z and uses its Z-Power, Horn Leech turns into Bloom Doom and has base power 140.
| Black White Black 2 White 2 | The user drains the target’s energy with its horns. The user’s HP is restored by half the damage taken by the target. |
| X Y O.Ruby A.Sapphire | The user drains the target’s energy with its horns. The user’s HP is restored by half the damage taken by the target. |
| Sun Moon Ultra Sun Ultra Moon | The user drains the target’s energy with its horns. The user’s HP is restored by half the damage taken by the target. |
| Sword Shield | The user drains the target’s energy with its horns. The user’s HP is restored by half the damage taken by the target. |
| B.Diamond S.Pearl | This move can’t be used. It’s recommended that this move is forgotten. Once forgotten, this move can’t be remembered. |
| English | Horn Leech |
|---|---|
| Spanish | Asta Drenaje |
| Italian | Legnicorno |
| Japanese | ウッドホーン (Wood Horn) |
| German | Holzgeweih |
| French | Encornebois |