Thief

Thief
Description:	Thief deals damage and steals opponents held item (Of course only if there is any to steal). Stealing items from wild pokes is permanent, from trainers lasts only to the end of battle.User can't steal item when it's already holding one, or when opponent has Sticky Hold ability.
Type    Dark	Category    Physical	Base Power    40	Accuracy    100%
Availability Level-up - read the list of compatible Pokémon below.
Pokémon that learn it via level-up: # Pokémon  Level  262         Mightyena 57 352         Kecleon 1 Bold indicates the Pokémon gains STAB from the move. --- indicates the Pokémon learns the move instinctively.

External Links

• Bulbapedia's entry of Thief