Board Thread:Theories and Speculation/@comment-35057921-20200304230629/@comment-26636534-20200305004514

I've brought this point up in a thread way back. From what we've seen of Kabuto assimilating the abilities of the sound five and taka, does raise the question of why did he stop there? There may be some arbitrary limit he had at the time or simply because Obito moved up the 4th shinobi war, Kabuto didn't have the time to properly assimilate more abilities.

Could you imagine Sage Kabuto with Hashirama's wood release? Or Madara's Susanoo? Clearly there was more for Sage Kabuto to "attain", as was the reward he discussed with Obito for his contribution was to be Sasuke. Kabuto definitely had more potential.