In the Scroll of Sealing, forbidden jutsu supposedly fell into two categories.
They either endangered the user or violated the laws of nature too severely.
The original series' official guidebook had named two of the most classic examples.
The Multi Shadow Clone Technique and Impure World Reincarnation were just such jutsu.
But this time, the reward—
it included the jutsu in the Sealed Jutsu Archive, so there were plenty of options to choose from.
When the Third Hokage saw Uchiha Genmei select these three jutsu, he could only sigh helplessly.
"Minister Yuan Ming... Make sure you don't let too many people learn these three jutsu."
"Don't worry, Lord Hokage. The other two are far too dangerous, apart from Flying Thunder God. I won't let people learn them without good reason."
After replying to Sarutobi Hiruzen, Uchiha Genmei exchanged a few pleasantries with him, then took his leave.
Uchiha Genmei walked slowly from the Hokage Building toward Orochimaru's Laboratory Building.
Of the three jutsu he could choose as rewards, he had picked Flying Thunder God, Impure World Reincarnation, and the Eight Branches Technique.
Flying Thunder God was an obvious choice. Impure World Reincarnation was an even bigger deal.
If he could perfect that jutsu,
the possibilities would be endless.
As for why he'd chosen the Eight Branches Technique for his third pick,
the answer was simple.
The jutsu might not have seemed very powerful in the original series.
But its greatest value was its ability to condense someone's obsession and bring it to life.
Orochimaru had used the technique to condense his obsession—Living Corpse Reincarnation—Cursed Seal—and then revive himself by bringing that obsession to life.
Sound familiar...?
Karma worked on roughly the same principle, except the Otsutsuki directly became beings of information.
Once they found an opportunity to decompress that information,