Gaara's Ultimate Defence

The Ultimate Defense: Shukaku Shield is a sand jutsu unique to Gaara. As its name implies, this is Gaara's strongest defense, made from him infusing sand with the hardest minerals in the soil he can find, thus making it almost impossible to destroy. Given its traits of Shukaku, Gaara's former tailed beast, this jutsu could very well not be useable by Gaara since his extraction.