Sniper
Strengthens critical hits to inflict 3× damage rather than 2×.
Full effect
This Pokémon inflicts triple damage with critical hits, rather than the usual double damage.
In game description
If the Pokémon's attack lands a critical hit, the attack is powered up even further.
Pokemon with Sniper
Using Sniper in Cobblemon
Abilities are passive and always active, so Sniper 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.