Rock Head

Rock Head is an ability introduced in Generation Three that prevnts recoil damage. This prevents damage from moves such as Take Down and Brave Bird, but not from Struggle or using a Life Orb.

Eighteen Pokémon have this ability, twelve of them Ground-type.

Single Ability
371 Bagon

372 Shelgon

Dual Ability
74 Geodude Sturdy

75 Graveler Sturdy

76 Golem Sturdy

95 Onix Sturdy

208 Steelix Sturdy

104 Cubone LightningRod

105 Marowak LightningRod

111 Rhyhorn LightningRod

112 Rhydon LightningRod

142 Aerodactyl Pressure

438 Bonsly Sturdy

185 Sudowoodo Sturdy

304 Aron Sturdy

305 Lairon Sturdy

306 Aggron Sturdy

369 Relicanth Swift Swim

Trivia

 * Rock Head is dominated by Rock-Ground, Rock, and part Rock Pokémon.
 * Ten Pokémon have a dual ability with Sturdy and four have a dual ability with LightningRod.