Board Thread:Fourth Databook/@comment-24577388-20141105025614/@comment-1926479-20141105061349

Kakashi had the Sharingan, so he was able to copy the techniques. Kakuzu having 5 natures is rare. Looking at the entire Naruto-verse, there's Hokages 1-3 (pure skill), Madara (Jubi host/pure skill), Kakuzu, Kakashi, Obito (Jubi host), Kaguya (Goddess), and Naruto. Wow 9 people having all 5 natures really lessens the impact >_>