Nara

The Nara is a very small clan that specialises in Shadow Jutsu's, In the show it reveals Shikamarus Dad using Shadow Techniques which later he passes down to his son Shikamaru, You see his techniquese being used alot in Naruto Shippuuden.The Nara clan is one of the most intelligent clans but at the same time one of the laziest its best allie is the Aikimichi Clan as they both share similiar traits both extremly lazy & akimichi has great power as nara have inteligence.