Toxic Boost
Increases Attack to 1.5× when poisoned.
Full effect
This Pokémon has 1.5× its Attack when poisoned.
In game description
Powers up physical moves when the Pokémon is poisoned.
Pokemon with Toxic Boost
Using Toxic Boost in Cobblemon
Abilities are passive and always active, so Toxic Boost 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.