Heavy Metal (Japanese: ヘヴィメタル, Hepburn: Heavy Metal) is a hidden Ability exclusive to Steel-type Pokémon, introduced in Generation V. Eight Pokémon have this ability.
Effect
| Generations | Description |
|---|---|
| Generation V | Doubles the Pokémon's weight. |
| Generation VI | |
| Generation VII | |
| Generation VIII | |
| Generation IX |
Pokémon
| Pokémon | Type | First Ability | Second Ability | Hidden Ability | |
|---|---|---|---|---|---|
 | Duraludon |  Steel /  Dragon | Light Metal | Heavy Metal | Stalwart |
 | Aron | Steel /  Rock | Sturdy | Rock Head | Heavy Metal |
 | Lairon | Steel / Rock | Sturdy | Rock Head | Heavy Metal |
 | Aggron | Steel / Rock | Sturdy | Rock Head | Heavy Metal |
 | Bronzor | Steel /  Psychic | Levitate | Heatproof | Heavy Metal |
 | Bronzong | Steel / Psychic | Levitate | Heatproof | Heavy Metal |
 | Cufant | Steel | Sheer Force | — | Heavy Metal |
 | Copperajah | Steel | Sheer Force | — | Heavy Metal |