Marvel Scale
Increases Defense to 1.5× with a major status ailment.
Full effect
Whenever this Pokémon has a major status ailment, it has 1.5× its Defense. This bonus does not count as a stat modifier.
In game description
The Pokémon's marvelous scales boost its Defense stat if it has a status condition.
Pokemon with Marvel Scale
Using Marvel Scale in Cobblemon
Abilities are passive and always active, so Marvel Scale 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.