the strongest villain tends to be the main antagonist. In the manga the strongest villain is either Pain or maadara. Oro couldnt match up with Pain, Maadara or even Itachi, so kabuto taking his powers i think doesnt stand a chance against them.
but we don;t know JkAdutos history
Rinnegan
and sharigan spek for themselves and well we don't know
Kabutos history still
we already know madra and pain are deezed but w don't know the power of kabuot
because he stood again kakashi and tsunade
with only medicl jutusu
if he had otehr secret jutsu then yeah
and :
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( Yakushi Kabuto loyalties are at the heart of his character. When he first appeared in the series he played the part of the trusting experienced confidant. He was then revealed as a spy for Orochimaru and his right hand man. Acting as Orochimaru?s spy, Kabuto entered the Chuunin exam seven times, gathering information for the Sound village. Each time that he had reached the final rounds, he opted to drop out, so he could compete again, and gather more data for his master. He was on a Genin team with Akadou Yoroi, and Tsurugi Misumi, who also acted as spies.
Years ago a battle took place at Bell Flower (Kikyou) Pass between Leaf and some unknown persons. In the aftermath a young child of the enemy was found by a Leaf Jounin medical doctor. The doctor adopted the boy and raised him as a son, teaching him medical jutsu. This boy would grow and have an unremarkable career, graduating from the academy at the age of 10 after taking the finals three times and taking on many low-ranking missions.
Before the first test of his latest Chuunin exams, Kabuto interacts with the Rookie Nine. He somewhat gains the trust of Team 7 and even shows them his information cards about various ninja. When the teams enter the Forest of Death for part 2 of the exams, Kabuto shows up after a near fatal encounter between Team 7 and three Sound ninja. Kabuto shows up just in time to stop Naruto from opening the scroll that they possessed, which would knock their team out disqualifying them from the competition.
Kabuto Kabuto hatches a plan, asking them to head towards the Tower at the center of the forest. He surmised that other teams would be in the vicinity, which would allow Naruto and company to steal the scroll they required. While executing the plan, Kabuto and Team 7 are halted by Rain Ninja, who use Genjutsu to try and tire out in order to pilfer the scrolls from the team. In this sequence, Kabuto?s glasses are knocked off, showing his eyes, which took a deep hue of red bloodshot. This combined with Kabuto?s ?old blood? comments has led many viewers to speculate he may be harboring some secret ability, although none have been revealed to date. Kabuto, like in previous years chose to refrain from entering the combat rounds of the Chuunin exams. Though his teammates entered, Kabuto chose to withdraw much to the surprise of Team 7.
)