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Horn Drill has 30% accuracy and inflicts damage equal to the target's current HP. Horn Drill will break a Substitute on contact, and can be countered for infinite damage if and when it breaks a Substitute.
Horn Drill will not affect a target whose current Speed stat is greater than the user's current Speed stat.
Generation II and on
Unlike in Generation I, Horn Drill can affect a Pokémon whose Speed stat is greater than the user's current Speed stat. However, it cannot affect a Pokémon of a higher level. The accuracy of Horn Drill depends on the level of the user and the level of the target and is worked out with the formula: Accuracy = ((level of user-level of target) + 30)%. Horn Drill ignores all changes to accuracy and evasion stats.
Template:Breedlist
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| style="background: #FFF; font-family:monospace,monospace" | 0086
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Seel
| colspan="2" style="background:#2980EF; text-align: center;" | Water
| style="background: #FFF" | Nidoran♂, Nidorino, Nidoking Rhyhorn, Rhydon
|-
| style="background: #FFF; font-family:monospace,monospace" | 0131
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Lapras
| colspan="1" style="background:#2980EF; text-align: center;" | Water || style="background:#3DCEF3" align="center" colspan="1" rowspan="1" | Ice
| style="background: #FFF" | Nidoran♂, Nidorino, Nidoking Rhyhorn, Rhydon
|-
| colspan="6" | Bold indicates a Pokémon which gets STAB from this move. Italic indicates a Pokémon whose evolution gets STAB from this move. *Indicates Pokémon that can only learn the move through chain breeding.
|}
|}
Template:Breedlist
|-
| style="background: #FFF; font-family:monospace,monospace" | 0077
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Ponyta
| colspan="2" style="background:#E62829; text-align: center;" | Fire
| style="background: #FFF" | Nidoran♂, Nidorino, Nidoking Rhyhorn, Rhydon, Rhyperior
|-
| style="background: #FFF; font-family:monospace,monospace" | 0086
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Seel
| colspan="2" style="background:#2980EF; text-align: center;" | Water
| style="background: #FFF" | Nidoran♂, Nidorino, Nidoking Rhyhorn, Rhydon, Rhyperior
|-
| style="background: #FFF; font-family:monospace,monospace" | 0131
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Lapras
| colspan="1" style="background:#2980EF; text-align: center;" | Water || style="background:#3DCEF3" align="center" colspan="1" rowspan="1" | Ice
| style="background: #FFF" | Nidoran♂, Nidorino, Nidoking Rhyhorn, Rhydon, Rhyperior
|-
| colspan="6" | Bold indicates a Pokémon which gets STAB from this move. Italic indicates a Pokémon whose evolution gets STAB from this move. *Indicates Pokémon that can only learn the move through chain breeding.
|}
|}
Template:Breedlist
|-
| style="background: #FFF; font-family:monospace,monospace" | 0077
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Ponyta
| colspan="2" style="background:#E62829; text-align: center;" | Fire
| style="background: #FFF" |
|-
| style="background: #FFF; font-family:monospace,monospace" | 0086
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Seel
| colspan="2" style="background:#2980EF; text-align: center;" | Water
| style="background: #FFF" |
|-
| style="background: #FFF; font-family:monospace,monospace" | 0131
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Lapras
| colspan="1" style="background:#2980EF; text-align: center;" | Water || style="background:#3DCEF3" align="center" colspan="1" rowspan="1" | Ice
| style="background: #FFF" |
|-
| colspan="6" | Bold indicates a Pokémon which gets STAB from this move. Italic indicates a Pokémon whose evolution gets STAB from this move. *Indicates Pokémon that can only learn the move through chain breeding.
|}
|}