Sasuke says right before he uses that jutsu "It is time to finish you, once and for all!". It must be an ultimate kind of forbidden jutsu.
That was no spam, but a serious thought.@Apple pie of doom Don't spam this thread with stupid answers like that. I want this thread to be serious, so the next time I see you spamming another thread I will report you.
Not everyone agrees with you. I still have to think it's an early version of Kirin. If it wasn't an early version of Kirin, then it's likely useless now anyway. If whatever jutsu that was, was stronger he would've used it on Itachi. So it's either an early version of Kirin or some weaker jutsu we'll likely never see.I have posted about two times stating it isn't Kirin and other members agree. So go read what I posted about Kirin.