Shadow Pressure Palm Technique

Shikamaru throws flash bombs behind him, to not only blind his foes but also to extend the range of his shadow indefinitely. Once those preparations are complete, Shikamaru can put any parts of his body in front of the light and it will appear as an enormous shadow. Once his shadow is ready, he can constrict any enemies easily just by closing his hand.

Kage Asshō no Jutsu