Keen Eye
Prevents accuracy from being lowered.
Full effect
This Pokémon cannot have its accuracy lowered. This ability does not prevent any accuracy losses other than stat modifiers, such as the accuracy cut from fog; nor does it prevent other Pokémon's evasion from making this Pokémon's moves less accurate. This Pokémon can still be passed negative accuracy modifiers through Heart Swap. Overworld: If the first Pokémon in the party has this ability, any random encounter with a Pokémon five or more levels lower than it has a 50% chance of being skipped.
In game description
The Pokémon's keen eyes prevent its accuracy from being lowered.
Pokemon with Keen Eye
Pidgey
#0017
Pidgeotto
#0018
Pidgeot
#0021
Spearow
#0022
Fearow
#0083
Farfetchd
#0107
Hitmonchan
#0161
Sentret
#0162
Furret
#0163
Hoothoot
#0164
Noctowl
#0215
Sneasel
#0227
Skarmory
#0278
Wingull
#0279
Pelipper
#0302
Sableye
#0396
Starly
#0431
Glameow
hidden
#0434
Stunky
hidden
#0435
Skuntank
hidden
#0441
Chatot
#0451
Skorupi
hidden
#0452
Drapion
hidden
#0504
Patrat
#0505
Watchog
#0580
Ducklett
#0581
Swanna
#0627
Rufflet
#0628
Braviary
#0677
Espurr
#0678
Meowstic Male
#0731
Pikipek
#0732
Trumbeak
#0733
Toucannon
#0744
Rockruff
#0745
Lycanroc Midday
#0821
Rookidee
#0822
Corvisquire
#0962
Bombirdier
Using Keen Eye in Cobblemon
Abilities are passive and always active, so Keen Eye 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.