[zamme]

Originally Posted by Cub-Sama

Spoiler for manga:

Sasuke has Tsuyokomi and Amaterasu but does that mean he has Susanoo as well or do they develop their own unique 3rd jutsu and for the 3rd jutsu to work do they have to use both techniques first.

One last question...are the Uchiha masters of genjutsu?

Spoiler:

There's no confirmation as to how the Susanoo is gained, or what is required of the user to achieve it. However, I think it's safe to say that Sasuke can not use Susanoo as of yet. Just the Tsukiyomi and Amaterasu.

Well, that depends on how you would define "masters". However the Tsukiyomi seems to be the ultimate Genjutsu technique. We have also seen Itachi using other genjutsu techniques, and also a genjutsu counter. However, he's the only uchiha we ever has seen using a Genjutsu, I believe.
The Uchiha seem to specialize more on Katon techniques then anything else. But I think that the short answer to your question would be "no".