Breakthrough! Spirit Transformation Technique!

"In other words, this thing's greatest use is to be issued to Death Warriors, or ANBU and Root ninja. When they are carrying out crucial missions and encounter enemies they cannot possibly resist, or find themselves in other hopeless situations, they can use it at the final moment to perish alongside the enemy. Or, when there are not enough powerful fighters, some ninja can take it to achieve strategic objectives on a particular battlefield." Hiruzen Sarutobi puffed on his pipe as he spoke. Minato Namikaze's eyelids twitched slightly.