Board Thread:Theories and Speculation/@comment-732150-20151211220100/@comment-1458758-20151212001628

The Magnet techniques of Kumo and Suna, Magnetic Iron Sand you can never escape.

Suna's wind techniques along with Hidden Mist jutsu, creating a rolling fog bank of murder.

Hell, even Puppeteers after the Last. There's an army of Chakra cannon wielding puppets lying around, and as we know, Kankuro is not exactly subtle about stealing other puppeteer's stuff. XD

On another note, Lightning release to modern electronics, suddenly "Hacking no Jutsu" and opening electronic locks stealthily seems doable if you happen to have lightning. Spying techniques for the modern age.