Cotton Down
When Ignores moves and abilities that draw in moves.
Full effect
When the Pokémon is hit by an attack, it scatters cotton fluff around and lowers the Speed stats of all Pokémon except itself.
In game description
When the Pokémon is hit by an attack, it scatters cotton fluff around and lowers the Speed stat of all Pokémon except itself.
Pokemon with Cotton Down
Using Cotton Down in Cobblemon
Abilities are passive and always active, so Cotton Down 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.