Pokédex / AbilitiesHeavy MetalAbout the abilityHeavy Metal is an ability introduced in generation 5.8 Pokémon can have this ability, such as Duraludon, Aron, Lairon, Aggron and Bronzor. For 7 of them it is the hidden ability, usually obtained from events, raids or breeding.Official effectDoubles the Pokémon's weight.Pokémon with the ability (1)DuraludonAs a hidden ability (7)AronLaironAggronBronzorBronzongCufantCopperajah