A Jutsu, usually, doesn’t involve any major risks, other than depleting the user’s chakra levels. While some Jutsu, like the Izanagi and Izanami, require a partial sacrifice, others take away the user’s life completely.
Today, I’ve made a list of 10 Jutsu, that lead to the death of the user.
10. Twin Snakes Mutual Death
So let’s begin with Twin Snakes Mutual Death. This jutsu is performed by Anko Mitarashi, after learning it from Orochimaru. By pinning their own and the opponent’s hand, the user forms seals to summon two snakes which bite both people, resulting in their deaths. Anko used it on Orochimaru, needless to say that she failed pathetically.
9. One’s Own Life Reincarnation
Next is Granny Chiyo’s Reanimation Jutsu. She used this technique to bring Gaara back to life after the Shukaku was extracted from him. This Jutsu also transferred her entire chakra and life force into Gaara, leading to her own death. Further, Chiyo would’ve survived if there was some life in Gaara, but since Gaara was dead, it took all she had to revive the Kazekage of the Sand.