I’m pretty sure Takishima stole this move from Sasuke.
It's not necesserily Sasuke, methinks. We see kagebuyo first as executed by Lee, and Sasuke recognizes the element. So, obviously it's something they teach in the ninja academy.
I know bloggers hate nitpicking, but anything that reminds of Naruto ep.22 is good, amirite?
UPDATE: Ryan, this conversation is one-way only if Hung wants it so. But what about Special A?