Interference

The technique that struck Killer B, the Eight-Tails' Jinchuriki, was the Third Raikage's secret technique—Hell Stab: Four-Finger Nukite. Combined with Lightning Release Chakra Mode, it was a killing move that pushed Lightning Release to its absolute limit.

The Third Raikage had taken chakra nature transformation to its extreme, concentrating his power into four fingers before attacking with them.

When such immense power erupted within such a tiny area, its astonishing piercing force was only natural.

In Mizuki's memories, the Third Raikage's Impure World Reincarnation body had used this powerful technique to shatter the defensive ninjutsu deployed by the Allied Shinobi Forces—Earth Release: Great Moving Earth Wall—as well as the defensive ninjutsu cast by Dodai, a Kekkei Genkai ninja—Lava Release: Rubber Wall.

And this was not even the limit of the technique. The Third Raikage could reduce the number of fingers used, thereby increasing its power.

When the technique was enhanced until only one finger remained, it became known as One-Finger Nukite. Its offensive power became unimaginably terrifying, and it was once called the "strongest spear."

Many years ago, when Blue B, the previous Eight-Tails Jinchuriki, lost control and went berserk, the Third Raikage had defeated Gyūki with One-Finger Nukite.

The missing horn of Gyūki had been broken off by the Third Raikage using that very technique.

Because of that incident, Orochimaru had obtained the Eight-Tails' severed horn after infiltrating the area. He then cultivated a considerable amount of Eight-Tails chakra, summoned Blue B through Impure World Reincarnation, and created an Impure World Reincarnation Jinchuriki—only for it to ultimately fall into Mizuki's hands.

Now, though his strength was somewhat suppressed and the power of Four-Finger Nukite was less concentrated, its impact still sent Gyūki's enormous body flying backward through the air before it crashed heavily into the rock wall behind him.