Keen Eye is an ability introduced in Generation III. So far, ~ Pokémon have this ability.
Keen Eye prevents loss of accuracy and ignores boosts to the opponent's evasion when attacking.
Outside of battle
If a Pokémon with Keen Eye is the leading party Pokémon, wild Pokémon are 50% less likely to be lower level.
Pokémon with Keen Eye
|Pokemon||First Ability||Second Ability||Hidden Ability|
|Budcheep||Big Pecks||Keen Eye||Wonder Skin|
|Budcherp||Big Pecks||Keen Eye||Wonder Skin|