Question regarding Ghul / Great Ghul from Dark Markets

[Yemeth]

It says that a great ghul gets greater invisibility as a spell like ability, but doesn't tell me how often. Any suggestions?

[Lord Gadigan]

Yemeth wrote:

It says that a great ghul gets greater invisibility as a spell like ability, but doesn't tell me how often. Any suggestions?

It gets it at will.

Evidence (Minor Spoilers for Legacy of Fire set pieces)-

Movie plot spoiler:

Umad Al-Waliyya, the Great Ghul villain from 'The Decanter of Black Breath', the set piece in The Final Wish, has it at will.

[F. Wesley Schneider]

Lord Gadigan wrote:

Evidence (Minor Spoilers for Legacy of Fire set pieces)-
** spoiler omitted **

What he said. :)

[Yemeth]

Yikes. Hmm, that could prove... interesting. *ponders*

Thanks a lot!