From Bulbapedia, the community-driven Pokémon encyclopedia.
Klutz (Japanese: ぶきよう Clumsy) is an Ability introduced in Generation IV. Prior to Generation V, it was the signature Ability of Buneary and Lopunny.
Klutz prevents the effects of the held item of the Pokémon with this Ability from applying.
Klutz does not affect items which affect prize money, experience or effort values, such as the Amulet Coin, Lucky Egg or Power Weight. The Speed drop from the Iron Ball is not negated by Klutz. It has no effect on the Soothe Bell.
Klutz does not prevent the Pokémon with this Ability from using Fling.
Generation V onward
Klutz now prevents the Pokémon with this Ability from using Fling.
Klutz does not prevent the Pokémon with this Ability from Mega Evolving with a Mega Stone or using a Z-Move with a Z-Crystal.
Outside of battle
Klutz has no effect outside of battle. (Items such as the Everstone, Cleanse Tag and Scarves are not affected.)
Pokémon with Klutz
In other languages