Re: Secret behind Obito's Kamui?
Also, Kakashi did not spam (he can't or he'll die) his MS as much as Sasuke did. I think Kakashi will eventually go blind, but his relatively prudent usage of Kamui will maintain the "light" in his eye relatively longer in comparison to say, other Uchiha whose eyes went dark or near dark.
In the span of about a month, Sasuke has used every bit of his Mangekyou sharingan in every fight until exhaustion. And I'm sure busting out Susano-o at the drop of a pin did his pre-EMS eyes no favors.
The Specialist, forever
^My first thread.lol