Earth Eater
Restores HP when hit by a Ground-type move.
Full effect
If hit by a Ground-type move, the Pokémon has its HP restored instead of taking damage.
In game description
If hit by a Ground-type move, the Pokémon has its HP restored instead of taking damage.
Pokemon with Earth Eater
Using Earth Eater in Cobblemon
Abilities are passive and always active, so Earth Eater costs you nothing to run. If it is marked hidden on a species above, expect it to be harder to obtain: servers differ in whether hidden abilities come from breeding, an Ability Patch, or events.
See the Pokedex for which abilities each species can have, and IVs, EVs and breeding for how to actually pass one down.