Combined Killing Art

Deidara creates several explosive spiders and throws them in the air as Sasori uses the Third Kazekage puppet to make shards of Iron Sand blades that carry the spiders to the enemy. The opponent is forced into the ground where the spiders detonate. The detonation is so powerful that Sasori has to make the Third Kazekage puppet create an iron sand barrier to shield Sasori and Deidara from the blast.

Trivia
This technique is shown in Naruto Shippūden: Ultimate Ninja 5 as the Ultimate Jutsu of both Deidara and Sasori.