Explosive Landmines

After creating the C2 Dragon, Deidara has the clay dragon spawn numerous clay mines and has Obito, then masked as Tobi, bury them around the battleground.

Trivia

 * The name of this technique comes from the video game Naruto Shippūden: Ultimate Ninja Heroes 3.
 * In Naruto Shippūden: Ultimate Ninja Heroes 3, Obito just buries them in front or around the opponent.