Board Thread:Theories and Speculation/@comment-5407586-20150624095943/@comment-732150-20150624215607

Deidara uses the hand mouths to infuse the clay with Explosion Release. We've seen many people add chakra to stuff, none of them with hand mouths. Why does Deidara do it like that? Clearly, something about the chakra infusion there is different. The medium he's infusing is important. Otherwise Deidara could just grab anything from a battlefield and make it explode a la Gambit. If the clay is earth, the lightning messes with the medium, so whatever chakra Deidara infused in it just doesn't work as it should. In a shaky comparison, it's kinda like the chakra cloak vanishing from the Allied shinobi when Naruto was in bad shape. He could no longer control the chakra, so it dissipated.