Seriously, it’s just ridiculous how OP this jutsu was.
It not only let Kabuto revive dozens of powerful shinobi at basically full power, but it seemingly cost barely any chakra to do so. All that Kabuto needed was a minuscule amount of DNA from the shinobi, and any random fodder to be used as a vessel. And any shinobi you revive is forced to serve you unless they know the hand signs like Madara did, or have an extremely rare and situational counter like Itachi using Kotoamatsukami on himself. If that somehow wasn’t enough, the shinobi you revive basically have infinite regen and need to be sealed in order to be defeated, and they also have infinitely regenerating chakra because why not
It not only let Kabuto revive dozens of powerful shinobi at basically full power, but it seemingly cost barely any chakra to do so. All that Kabuto needed was a minuscule amount of DNA from the shinobi, and any random fodder to be used as a vessel. And any shinobi you revive is forced to serve you unless they know the hand signs like Madara did, or have an extremely rare and situational counter like Itachi using Kotoamatsukami on himself. If that somehow wasn’t enough, the shinobi you revive basically have infinite regen and need to be sealed in order to be defeated, and they also have infinitely regenerating chakra because why not