Board Thread:Theories and Speculation/@comment-28717679-20160611095118/@comment-25122992-20160611102542

SuperSajuuk wrote: Because he has the Sharingan that allows him to copy techniques and elements. You can't copy elements, you must firstly master them by yourself. Only then you can copy a jutsu of particular element with the Sharingan. So Kakashi was one of the few people who were able to naturally master all the 5 elements without any enhancements.