Death's Kiss

Comprised of extraordinary chakra control and skills with sealing techniques, the technique is used as a one-hit kill. After creating metal rod(s) from any point from their body, the user proceeds to attempt to impale the intended target(s) with said rod. Upon being stabbed with the rod, the target is subjected to the chakra for within user's metal; leaking the user's chakra within the target's body. The metal release chskra then latches itself on the target's iron within their blood system, rapidly growing and spread to each blood cell in the body. Depending on how skilled the user is with their metal will vary how long this process will take or be completed. And with a single signal, the metal begins to expand greatly restricting the cycle of blood within the body, giving the the person a agonizing death. Not only does it affect the blood flow but the chakra flow as well. Using the prowess of sealing techniques, the chakra that the victim was subjected to is used to immediately seal off the flow of chakra, making the use of ninjutsu and medical counterparts obsolete by traditional means. While this process is underway, the victim's body begins to solidify— transitioning from flesh— to metal identical to the user's own; eventually killing the target.