Sand Hail is a larger scale version of Gaara's Sand Drizzle.
Gaara gathers his sand into large clumps in the shape of massive boulder-like formations and then drops them from the sky on to his opponents. It covers a wide range, making it difficult to dodge. Like the Sand Drizzle, the technique can distract the enemy with an aerial assault, leaving them open to an attack from below.
- Fourth Databook, page 321
- Naruto chapter 547, page 13