Sasuke's secret jutsu

[Mad Daz]

It seems most likely it was kirin. Something from back then would most likely be revealed by now. Im sure it wouldnt have been on the same scale of the one sasuke used vs itachi though.

 

[Naruto X Hunter]

Reasons why it could be Kirin:

1. He raised up his hand

Reasons it couldn't be Kirin

1. No storm clouds

2. Didn't perform the seals he did against Itachi

3. Kirin was stated to be beyond what one could make with their chakra alone

4. Orochimaru knew what the jutsu Sasuke was going to use was, but commented that he didn't see Sasuke's shape manipulation of Chidori before, so Sasuke probably developed his lightning techniques himself so Oro didn't know what they were, meaning it couldn't be Kirin.

5. If he can produce a Kirin powerful to kill three people on his own, why would he risk Itachi killing him to create one with storm clouds

6. Didn't create a Chidori before his raising his hand like he did when he used Kirin

...

Correct

 

[Eternal Gennin]

what is sasuke's secret jutsu? the one he was about to use on naruto, sakura, yamato and sai when orochimaru stopped him? he was also about to use it on deidara. any ideas? do you think he will use it soon against kaguya?

Pole Dance no Jutsu

 

[RedRobin]

I believe it was going to be a katon then kirin.